Cambridge Assessment International Education pasxcel.com PHYSICS 0625… · 2020. 7. 6. · and M....

This syllabus is regulated for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

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Cambridge Assessment International Education Cambridge International General Certificate of Secondary Education

PHYSICS 0625/11 Paper 1 Multiple Choice (Core) May/June 2019

45 minutes

Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB recommended)

READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, centre number and candidate number on the Answer Sheet in the spaces provided unless this has been done for you. DO NOT WRITE IN ANY BARCODES. There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet. Read the instructions on the Answer Sheet very carefully. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet. Electronic calculators may be used. Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

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1 A digital stop-clock measures time in minutes and seconds.

The stop-clock reads 00:50 when it is started (i.e. 00 minutes 50 seconds).

It reads 02:10 when it is stopped.

What is the shortest possible time that has elapsed between starting and stopping the stop-clock?

A 1 minute 20 seconds

B 2 minutes 00 seconds

C 2 minutes 10 seconds

D 3 minutes 00 seconds 2 A long-distance runner wishes to calculate her average speed for a race.

Which calculation should she use?

A average speed = time total

distance total

B average speed = total distance × total time

C average speed = distance total

time total

D average speed = total distance + total time

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3 A heavy metal ball falls vertically downwards through air past four equally spaced levels J, K, L and M.

level J

level K

level L

level M

metal ball

The times taken to fall from one level to the next are measured.

Where is the speed of the ball greatest and which time is shortest?

speed is greatest between time is

shortest between

A J and K J and K

B J and K L and M

C L and M J and K

D L and M L and M 4 An arrow travels horizontally in a straight line at constant speed.

In which direction does the weight act?

direction of motion

A

DB

C

ground

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5 Two rectangular blocks consist of different materials.

Four different methods are suggested to compare the two masses.

1 Compare the accelerations with which they fall freely.

2 Compare the values of their lengths × breadths × heights.

3 Hang each in turn from the same spring. Compare the extensions.

4 Place one in the right-hand pan of a beam balance and the other in the left-hand pan.

Which methods give a comparison of the two masses?

A 1, 2 and 3 B 1 and 2 only C 3 and 4 only D 4 only 6 The diagrams show four solid blocks with their dimensions and masses.

Which block has the greatest density?

A

mass = 14 g

area = 10 cm2 B

mass = 48 g

area = 20 cm2

2.0 cm 2.0 cm

C

mass = 54 g

area = 10 cm2 D

mass = 68 g

2.0 cm 2.0 cm

area = 20 cm2

7 A mass of 20 kg is held stationary by a rope passing over a frictionless pulley.

20 kg

T

pulley

What is the tension T in the rope?

A 10 kg B 20 kg C 100 N D 200 N

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8 A spring is suspended from a stand. Loads are added and the extensions are measured.

loads

springstand

rule

Which graph shows the result of plotting extension against load?

load

extension

A

load

extension

B

load

extension

C

load

extension

D

00

00

00

00

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9 A wooden bar is pivoted at its centre so that it can rotate freely. Two equal forces F are applied to the bar.

In which diagram is the turning effect greatest?

F

F

A

F F

B

FF

C D

FF

pivot pivot

pivot pivot

10 A machine is very efficient.

What does this mean?

A It produces a large amount of power.

B It uses very little energy.

C It wastes very little energy.

D It works very quickly. 11 An object is lifted vertically by a motor.

In which example is the power produced the greatest?

A lifting it a shorter distance in a longer time

B lifting it the same distance in a longer time

C lifting it a shorter distance in the same time

D lifting it the same distance in a shorter time

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12 Four identical submarines P, Q, R and S are lowered from one depth to another in water of a constant density.

The initial and final depths of each submarine are shown in the diagram.

submarineP

10 m

submarineQ

30 m

submarineR

50 m

submarineS

70 m

water surface

Which row is correct for the difference in pressure from the initial to final depth of each submarine?

least change in pressure greatest change

in pressure

A submarines P and Q submarines R and S

B submarines P and Q submarine R only

C submarine P only submarines R and S

D submarine P only submarine R only

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13 The diagram shows a stone suspended on a string under the surface of a liquid. The stone experiences a pressure caused by the liquid.

liquid

string

stone

What would increase the pressure on the stone?

A decreasing the surface area of the stone

B increasing the mass of the stone

C lowering the stone deeper into the liquid

D using a liquid with a lower density 14 Why can a gas be compressed easily into a smaller volume?

A The molecules are far apart.

B The molecules do not attract each other.

C The molecules move randomly.

D The volume of each molecule can be reduced. 15 When a liquid evaporates, some molecules escape. The temperature of the remaining liquid

changes.

What is the effect on the temperature and from where do the molecules escape?

temperature of liquid molecules escape from

A decreases everywhere within the liquid

B decreases the surface only

C increases everywhere within the liquid

D increases the surface only 16 What happens when a metal block is heated?

A Its breadth, height and length all increase.

B Its width increases only.

C Its height increases only.

D Its length increases only.

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17 A night storage heater contains a large block of material that is heated electrically during the night. During the day the block cools down, releasing thermal energy into the room.

Which thermal capacity and which night-time temperature increase will cause the most energy to be stored by the block?

thermal capacity of block night-time

temperature increase

A large large

B large small

C small large

D small small 18 The diagram shows the changes of state P, Q, R and S that occur in solids, liquids and gases

when they gain or lose thermal energy.

liquid gassolid

P

S

Q

R

gain thermal energy

lose thermal energy

What is the name of change R?

A condensation

B solidification

C boiling

D melting

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19 In which does thermal conduction not occur?

A a gas

B a liquid

C a solid

D a vacuum 20 The metal surface of a kettle is hot.

What happens to the cool air outside the kettle when it comes into contact with the hot kettle?

A The density of the air decreases and the air falls.

B The density of the air decreases and the air rises.

C The density of the air increases and the air falls.

D The density of the air increases and the air rises. 21 Ultrasound is used in a hospital to scan a patient. Ultrasound refracts at the boundary between

muscle and bone because it travels at a greater speed in bone.

Which change takes place when the ultrasound travels from muscle into bone?

A The frequency of the wave decreases.

B The frequency of the wave increases.

C The wavelength of the wave decreases.

D The wavelength of the wave increases.

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22 The diagram shows a cork with a weight attached so that the cork floats upright in water.

X Y

cork water surface

weight

Transverse waves travel across the water from X to Y.

In which direction do the waves make the cork move?

A → ← right and left

B ↑↓ up and down

C → only to the right

D ← only to the left 23 An object is placed 30 cm in front of a plane mirror.

Which statement describes the image of the object?

A The image is the same size and 30 cm from the object.

B The image is the same size and 60 cm from the object.

C The image is smaller and 30 cm from the object.

D The image is smaller and 60 cm from the object. pa

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24 The diagram shows light incident at a glass-air boundary. The angle of incidence i of the ray is greater than the critical angle.

Which line shows the path of the light after it meets the boundary?

airglass i

incident rayof light

A

B

C D

25 The diagram shows radiation from a lamp passing through a prism.

radiation fromlamp

Pred light

screen

prism

Which type of radiation is found at P?

A γ-rays

B infrared

C ultraviolet

D X-rays pa

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26 A pulse of sound is produced at the bottom of a boat. The sound travels through the water and is reflected from a shoal of fish. The sound reaches the boat again after 1.2 s. The speed of sound in the water is 1500 m / s.

shoal of fish

boat

How far below the bottom of the boat is the shoal of fish?

A 450 m B 900 m C 1800 m D 3600 m 27 Which range is approximately correct for the audio frequencies that can be detected by a healthy

human ear?

A 2 Hz to 2000 Hz

B 2 Hz to 20 000 Hz

C 20 Hz to 2000 Hz

D 20 Hz to 20 000 Hz 28 Why is soft iron used for the core of an electromagnet?

A Soft iron easily becomes a permanent magnet.

B Soft iron is a good electrical conductor.

C Soft iron is a poor thermal conductor.

D Soft iron loses its magnetism when the current in the coil is switched off.

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29 An iron ball on a horizontal wooden table rolls near the north pole of a bar magnet which is lying on the table.

Which diagram shows the most likely path of the ball, as seen from above the table?

SN

A

magnet

ball

SN

B

magnet

SN

C

magnet

ball

SN

D

magnet

ball stopshere

ball

30 Diagram 1 shows two thin, uncharged strips of plastic.

Diagram 2 shows the same strips after they have been rubbed with a dry cloth.

diagram 1 diagram 2

stripsof plastic

stripsof plastic

Which row describes the charge on the strips after rubbing, and the force between the strips after rubbing?

charge on strips force between strips

A opposite attraction

B opposite repulsion

C the same attraction

D the same repulsion

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31 A voltmeter and an ammeter are used to measure the resistance of a resistor.

Which diagram shows the voltmeter and the ammeter correctly connected?

A V

A

A

V

A

VA

V

B C D

32 A student sets up four circuits.

In which circuit is there a heater in series with a fuse?

A B C D

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33 The diagram shows a circuit containing a d.c. power supply, a motor and a variable resistor.

Three ammeters X, Y and Z show the current in different parts of the circuit.

A

A A

M

X Z

Y

+ –

The reading on X is 4.0 A.

Which statement is correct?

A The readings on Y and Z are both less than 4.0 A.

B The readings on Y and Z are both equal to 4.0 A.

C The readings on Y and Z are both greater than 4.0 A.

D The reading on Z is zero. 34 A lamp is to be connected in a circuit so that the potential difference (p.d.) across it can be varied

from 0 to 6 V.

Which circuit would be most suitable?

6 V

A

6 V

B

6 V

C

6 V

D

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35 An electric heater is plugged into the mains supply using a fused plug.

The current in the heater is 10 A.

The cable attached to the heater is rated at 15 A.

The fuses available are rated at 1 A, 3 A, 5 A and 13 A.

Which fuse should be used?

A 1 A B 3 A C 5 A D 13 A 36 A bar magnet is held near a coil of wire. The coil is connected to a sensitive voltmeter.

N

bar magnet

V

coil of wire

The N-pole of the magnet is moved quickly towards the coil. The voltmeter shows a reading of +10 mV.

The N-pole of the magnet is then moved slowly away from the same end of the coil. The reading on the voltmeter is observed.

Which voltmeter reading is possible?

A –15 mV B –5 mV C 0 mV D +5 mV

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37 Four small compasses are placed around a solenoid.

solenoid

A current is now switched on in the solenoid.

Which diagram shows possible new directions of the compass needles?

A B

C D

38 Four nuclides are represented below.

E63 G73 L

64 M

75

Which pair of nuclides are isotopes of the same element?

A E and G B E and L C G and L D G and M

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39 A student measures the level of radiation emitted from a radioactive substance. He places a detector very close to the substance. He puts different absorbers between the radioactive substance and the detector.

radioactivesubstance detector

counter

absorber

The student’s results are shown. These results are corrected for background radiation.

absorber minute per countsreading counter

none 95

thin paper 52

few mm of aluminium 52

several cm of lead 12

Which types of radiation are being emitted by the substance?

A α-particles and β-particles only

B α-particles and γ-rays only

C β-particles and γ-rays only

D α-particles, β-particles and γ-rays 40 The nuclei of the atoms in a substance are changing randomly and emitting radiation.

What is happening to the substance?

A It is undergoing electromagnetic induction.

B It is undergoing magnetisation.

C It is undergoing solidification.

D It is undergoing radioactive decay.

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Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series. Cambridge Assessment International Education is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of the University of Cambridge Local Examinations Syndicate (UCLES), which itself is a department of the University of Cambridge. © UCLES 2019 0625/11/M/J/19

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This document consists of 16 printed pages.

IB19 06_0625_21/3RP © UCLES 2019 [Turn over

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PHYSICS 0625/21 Paper 2 Multiple Choice (Extended) May/June 2019

45 minutes

Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB recommended)

READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, centre number and candidate number on the Answer Sheet in the spaces provided unless this has been done for you. DO NOT WRITE IN ANY BARCODES. There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet. Read the instructions on the Answer Sheet very carefully. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet. Electronic calculators may be used. Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

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1 Which quantity can be measured directly using a micrometer screw gauge?

A the area of a sheet of paper

B the mass of a sheet of paper

C the thickness of a sheet of paper

D the volume of a sheet of paper 2 The velocity of an object increases from 30 m / s to 50 m / s in 5.0 seconds.

What is the average acceleration of the object?

A 0.10 m / s2 B 0.25 m / s2 C 4.0 m / s2 D 10 m / s2 3 A heavy metal ball falls vertically downwards through air past four equally spaced levels J, K, L

and M.

level J

level K

level L

level M

metal ball

The times taken to fall from one level to the next are measured.

Where is the speed of the ball greatest and which time is shortest?

speed is greatest between time is

shortest between

A J and K J and K

B J and K L and M

C L and M J and K

D L and M L and M

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4 A body is moved from place X to place Y where the gravitational field strength is different.

What happens to its mass and to its weight due to the move?

mass weight

A changes changes

B changes stays the same

C stays the same changes

D stays the same stays the same 5 The diagrams show four solid blocks with their dimensions and masses.

Which block has the greatest density?

A

mass = 14 g

area = 10 cm2 B

mass = 48 g

area = 20 cm2

2.0 cm 2.0 cm

C

mass = 54 g

area = 10 cm2 D

mass = 68 g

2.0 cm 2.0 cm

area = 20 cm2

6 A student wishes to determine the spring constant of a spring where it obeys Hooke’s law.

Different loads are hung from the spring and its length is measured for each different load.

The table shows the results of the experiment.

weight of load / N 0 2.0 4.0 5.0

length of spring / cm 12 20 28 38

What is the value of the spring constant of the spring?

A 0.13 N / cm B 0.14 N / cm C 0.19 N / cm D 0.25 N / cm

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7 A mass of 20 kg is held stationary by a rope passing over a frictionless pulley.

20 kg

T

pulley

What is the tension T in the rope?

A 10 kg B 20 kg C 100 N D 200 N 8 A boat starts moving across a river at velocity v perpendicular to the river bank.

The boat encounters a current along the river of velocity u, as shown.

v

u river

Which vector diagram shows the resultant velocity r of the boat?

v

u

A

rv

u

B

rv

u

C

rv

u

r

D

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9 A ball of mass 0.50 kg falls and hits the floor at 10 m / s.

It rebounds at speed 8.0 m / s, as shown.

10 m / s 8 m / s

before collision after collision

The collision between the ball and the floor lasts for 0.50 s.

What is the average force acting on the ball during the collision?

A 2.0 N upwards

B 2.0 N downwards

C 18 N upwards

D 18 N downwards 10 An object falls from the top of a building that is 25 m high. Air resistance is negligible.

What is the speed of the object when it hits the ground?

A 10 m / s B 22 m / s C 25 m / s D 625 m / s 11 A machine is very efficient.

What does this mean?

A It produces a large amount of power.

B It uses very little energy.

C It wastes very little energy.

D It works very quickly. 12 A crane takes 2.0 minutes to lift a load to the top of a building. The change in gravitational

potential energy of the load is 360 kJ.

What is the useful power output of the crane?

A 3.0 kW B 180 kW C 720 kW D 43 200 kW

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13 The diagram shows a stone suspended on a string under the surface of a liquid. The stone experiences a pressure caused by the liquid.

liquid

string

stone

What would increase the pressure on the stone?

A decreasing the surface area of the stone

B increasing the mass of the stone

C lowering the stone deeper into the liquid

D using a liquid with a lower density 14 A stationary smoke particle is hit by a fast-moving nitrogen molecule.

Which row describes the motion of the smoke particle and of the nitrogen molecule after the collision?

smoke particle nitrogen molecule

A moves rebounds

B moves stops

C remains stationary rebounds

D remains stationary stops

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15 A night storage heater contains a large block of material that is heated electrically during the night. During the day the block cools down, releasing thermal energy into the room.

Which thermal capacity and which night-time temperature increase will cause the most energy to be stored by the block?

thermal capacity of block night-time

temperature increase

A large large

B large small

C small large

D small small 16 100 g of water at 25 °C is poured into an insulating cup. 50 g of ice at 0 °C is added to the water.

The water is stirred until the temperature of the water has fallen to 0 °C.

18 g of ice remains unmelted.

The specific heat capacity of water is 4.2 J / g °C.

Which value does this experiment give for the specific latent heat of fusion of ice?

A 210 J / g B 330 J / g C 580 J / g D 770 J / g 17 In which does thermal conduction not occur?

A a gas

B a liquid

C a solid

D a vacuum

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18 The metal surface of a kettle is hot.

What happens to the cool air outside the kettle when it comes into contact with the hot kettle?

A The density of the air decreases and the air falls.

B The density of the air decreases and the air rises.

C The density of the air increases and the air falls.

D The density of the air increases and the air rises. 19 Some hot water is sealed inside a metal can. The can is in a vacuum in outer space. The hot

water slowly cools down.

How does the thermal energy escape into space?

A by conduction then convection

B by conduction then radiation

C by evaporation then convection

D by evaporation then radiation 20 When water waves pass through a gap they diffract.

The diagrams show wavefronts approaching a narrow gap.

In which diagram will the diffraction be least?

A B C D

21 An object is placed 30 cm in front of a plane mirror.

Which statement describes the image of the object?

A The image is the same size and 30 cm from the object.

B The image is the same size and 60 cm from the object.

C The image is smaller and 30 cm from the object.

D The image is smaller and 60 cm from the object.

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22 A small object O is placed near a converging lens, as shown. The lens forms an image I.

I O


A The image I is diminished.

B The image I is inverted.

C The image I is real.

D The object O is closer to the lens than its principal focus. 23 An eclipse of the Sun happens when the Moon comes between the Earth and the Sun.


A Infra-red radiation from the Sun disappears before visible light and ultra-violet radiation.

B Ultra-violet radiation from the Sun disappears before visible light and infra-red radiation.

C Visible light from the Sun disappears before ultra-violet radiation and infra-red radiation.

D Infra-red radiation, ultra-violet radiation and visible light from the Sun all disappear at the same moment.

24 A pulse of sound is produced at the bottom of a boat. The sound travels through the water and is

reflected from a shoal of fish. The sound reaches the boat again after 1.2 s. The speed of sound in the water is 1500 m / s.

shoal of fish

boat

How far below the bottom of the boat is the shoal of fish?

A 450 m B 900 m C 1800 m D 3600 m

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25 What is the approximate value of the speed of sound in air at normal temperature?

A 340 m / s B 34 000 m / s C 340 km / s D 3.0 × 108 m / s 26 Why is soft iron used for the core of an electromagnet?

A Soft iron easily becomes a permanent magnet.

B Soft iron is a good electrical conductor.

C Soft iron is a poor thermal conductor.

D Soft iron loses its magnetism when the current in the coil is switched off. 27 Diagram 1 shows two thin, uncharged strips of plastic.

Diagram 2 shows the same strips after they have been rubbed with a dry cloth.

diagram 1 diagram 2

stripsof plastic

stripsof plastic

Which row describes the charge on the strips after rubbing, and the force between the strips after rubbing?

charge on strips force between strips

A opposite attraction

B opposite repulsion

C the same attraction

D the same repulsion

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28 A cell has an electromotive force (e.m.f.) of 1.5 V.

What does this statement mean?

A The cell converts 1.0 J of energy when driving 1.5 C of charge round a complete circuit.

B The cell converts 1.5 J of energy when driving 1.0 C of charge round a complete circuit.

C The cell converts 1.5 J of energy per second when driving 1.0 C of charge round a complete circuit.

D The cell converts 1.5 W of power when driving 1.0 C of charge round a complete circuit. 29 Which two changes to a metal wire both increase resistance?

A decreasing its length and increasing its temperature

B increasing its length and decreasing its temperature

C decreasing its thickness and increasing its temperature

D increasing its thickness and decreasing its temperature 30 The diagram shows a circuit containing a d.c. power supply, a motor and a variable resistor.

Three ammeters X, Y and Z show the current in different parts of the circuit.

A

A A

M

X Z

Y

+ –

The reading on X is 4.0 A.


A The readings on Y and Z are both less than 4.0 A.

B The readings on Y and Z are both equal to 4.0 A.

C The readings on Y and Z are both greater than 4.0 A.

D The reading on Z is zero.

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31 A lamp is to be connected in a circuit so that the potential difference (p.d.) across it can be varied from 0 to 6 V.

Which circuit would be most suitable?

6 V

A

6 V

B

6 V

C

6 V

D

32 Which logic gate is represented by the symbol shown?

A AND B NAND C NOR D OR 33 The diagram shows a combination of logic gates.

Which single logic gate is equivalent to this combination?

A AND B NOR C NOT D OR

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34 An alternating current (a.c.) power supply is connected in series with a resistor R and a diode.

R

V

Which graph shows how the voltage V across the resistor R varies with time?

voltage V

00

0

0

time

A

voltage V

time

B

voltage V

0time

C

voltage V

time

D

0

0

0

35 An electric heater is plugged into the mains supply using a fused plug.

The current in the heater is 10 A.

The cable attached to the heater is rated at 15 A.

The fuses available are rated at 1 A, 3 A, 5 A and 13 A.

Which fuse should be used?

A 1 A B 3 A C 5 A D 13 A 36 What is the purpose of the commutator in a d.c. electric motor?

A to control the speed at which the motor rotates

B to reverse the direction of the voltage across the power supply every half-turn

C to reverse the direction of the current in the motor coil every half-turn

D to reverse the direction of spin of the motor coil every half-turn

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37 The diagram shows a wire between two magnetic poles. The wire is connected in a circuit with an ammeter.

N SA

wire

The wire is moved downwards, towards the bottom of the page. A current is induced in the wire.

In which direction is the force on the wire caused by this current?

A towards the bottom of the page

B towards the left of the page

C towards the right of the page

D towards the top of the page 38 The chemical symbol for sodium is Na. The equation represents the radioactive decay of

sodium-24.

24Na →1124Mg +x

ye–1

What are the numbers x and y?

x y

A 10 0

B 10 1

C 12 0

D 12 1 pa

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39 A radioactive source emits α-particles, β-particles and γ-rays into a vacuum where there is a magnetic field.

The magnetic field acts perpendicularly into the plane of the paper.

The paths X, Y and Z of the three types of radiation through the magnetic field are shown.

XY

Z

radioactivesource

magnetic fieldinto paper

Which radiation follows path X, path Y and path Z?

X Y Z

A α-particles β-particles γ-rays

B α-particles γ-rays β-particles

C β-particles α-particles γ-rays

D β-particles γ-rays α-particles

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Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series. Cambridge Assessment International Education is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of the University of Cambridge Local Examinations Syndicate (UCLES), which itself is a department of the University of Cambridge. © UCLES 2019 0625/21/M/J/19

40 A student measures the level of radiation emitted from a radioactive substance. He places a detector very close to the substance. He puts different absorbers between the radioactive substance and the detector.

radioactivesubstance detector

counter

absorber

The student’s results are shown. These results are corrected for background radiation.

absorber minute per countsreading counter

none 95

thin paper 52

few mm of aluminium 52

several cm of lead 12

Which types of radiation are being emitted by the substance?

A α-particles and β-particles only

B α-particles and γ-rays only

C β-particles and γ-rays only

D α-particles, β-particles and γ-rays

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DC (LEG/JG) 168104/5© UCLES 2019 [Turn over

*9089743291*

PHYSICS 0625/31Paper 3 Theory (Core) May/June 2019 1 hour 15 minutesCandidates answer on the Question Paper.No Additional Materials are required.

READ THESE INSTRUCTIONS FIRST

Write your centre number, candidate number and name on all the work you hand in.Write in dark blue or black pen.You may use an HB pencil for any diagrams or graphs.Do not use staples, paper clips, glue or correction fluid.DO NOT WRITE IN ANY BARCODES.

Answer all questions.Electronic calculators may be used.You may lose marks if you do not show your working or if you do not use appropriate units.Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each question or part question.

Cambridge Assessment International EducationCambridge International General Certificate of Secondary Education


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1 (a) A student has a metal object.

(i) The student measures the mass of the object.

State the name of the equipment used to measure the mass.

..................................................................................................................................... [1]

(ii) The mass of the metal object is 1260 g. The volume of the metal is 150 cm3.

Calculate the density of the metal. Include the unit.

density = ......................................................... [4]

(iii) The mass of the metal object is given in grams. State the mass in kg.

mass = .................................................... kg [1]

(b) A vase is placed on a table. Forces X and Y act on the vase, as shown in Fig. 1.1.

vase

X

Y

Fig. 1.1

The mass of the vase is 0.25 kg. The vase is not moving.

Calculate the value of force X and the value of force Y.

X ...............................................

Y ............................................... [4]

[Total: 10]

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0625/31/M/J/19© UCLES 2019 [Turn over

2 Fig. 2.1 shows a man pushing down on a lever to lift one end of a heavy log.

heavy log

lever

Fig. 2.1

(a) State the term used to describe the turning force exerted by the man.

............................................................................................................................................. [1]

(b) (i) Fig. 2.2 shows the forces acting as the man starts to lift the heavy log.

0.3 m1.2 m

400 N

pivot

leverF

Fig. 2.2

Calculate the force F, exerted by the lever on the heavy log.

force F = ..................................................... N [3]

(ii) Describe how the man can use a smaller force to lift the heavy log.

...........................................................................................................................................

..................................................................................................................................... [1]

[Total: 5]

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3 A teacher investigates the reaction time of five students. A 0.50 m ruler is held above the hand of a student before being allowed to fall. The arrangement is shown in Fig. 3.1.

teacher’shand student’s hand

Fig. 3.1

As soon as the ruler falls the student closes their hand, catching the ruler. The further the ruler falls, the greater the reaction time of the student. The results obtained are shown in Fig. 3.2.

2

0

4

6

8

10

12

14

16

18

20

22

24

A B C D E

distancerulerfalls / cm

students

Fig. 3.2

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(a) Using the results shown in Fig. 3.2, calculate the average distance that the ruler drops.

average distance = ................................................... cm [2]

(b) List the students in order of their reaction times, with the shortest reaction time at the top of the table. One has been done for you.

order student

1st

2nd

3rd B

4th

5th [2]

(c) In a similar investigation, a ruler drops a distance of 11.0 cm and has an average speed of 16 cm / s.

Calculate the reaction time.

reaction time = ...................................................... s [3]

[Total: 7]

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4 Fig. 4.1 shows a pin. Fig. 4.2 shows a person pushing the pin into a wall.

top surfaceof the pin

Fig. 4.1 Fig. 4.2

(a) (i) The area of the top surface of the pin is 1.8 cm2. The person applies a force of 50 N.

Calculate the pressure exerted on the top surface of the pin.

pressure = ............................................. N / cm2 [3]

(ii) The area of the top surface of the pin is 500 times larger than the area of the point. Calculate the value of the pressure exerted by the point on the wall.

pressure = ............................................. N / cm2 [1]

(b) Fig. 4.3 shows a simple device for measuring atmospheric pressure.

mercury

mercury column

space

760 mm

Fig. 4.3

(i) State the name given to the device shown in Fig. 4.3.

..................................................................................................................................... [1]

(ii) State what, if anything, is in the space at the top of the tube, above the mercury column.

..................................................................................................................................... [1]

(iii) Fig. 4.3 shows normal atmospheric pressure. Suggest a possible value for the height of the mercury column when atmospheric pressure decreases. Include the unit.

reading = ......................................................... [1]

[Total: 7]

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5 Coal is a non-renewable source of energy.

(a) (i) Explain what is meant by the term non-renewable.

...........................................................................................................................................

..................................................................................................................................... [1]

(ii) There are other non-renewable sources of energy.

Place a tick in the box by each non-renewable source of energy.

nuclear

oil

solar

wave

wind [1]

(b) State two advantages and two disadvantages of using natural gas as an energy source.

advantages

1. .......................................................................................................................................

...........................................................................................................................................

2. .......................................................................................................................................

...........................................................................................................................................

disadvantages

1. .......................................................................................................................................

...........................................................................................................................................

2. .......................................................................................................................................

........................................................................................................................................... [4]

[Total: 6]

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6 A liquid-in-glass thermometer is placed in some ice made from pure water. The ice is heated. It changes to water and then to steam.

The graph in Fig. 6.1 shows how the temperature varies with time. The values of temperature are missing from the y-axis.

0 10 20 30 40 50 60 70

time / minutes

temperature / °C

YY

XX

Fig. 6.1

(a) On Fig. 6.1, suggest a value for the temperature at each of the three points marked on the y-axis.

Write a value in each of the boxes. [2]

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(b) In both section X and section Y the line on the graph is horizontal.

For each section, state the name for the process taking place and explain what is happening to the molecules.

(i) section X

name .................................................................................................................................

explanation ........................................................................................................................

...........................................................................................................................................

...........................................................................................................................................

........................................................................................................................................... [2]

(ii) section Y

name .................................................................................................................................

explanation ........................................................................................................................

...........................................................................................................................................

...........................................................................................................................................

........................................................................................................................................... [2]

[Total: 6]

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7 (a) Fig. 7.1 shows some devices that each use one type of electromagnetic radiation.

device electromagnetic radiation

radio

binocularsfor daytimeuse

sunbed

TV remotecontroller

gamma rays

X-rays

ultraviolet light

visible light

infra-red rays

microwaves

radio waves

Fig. 7.1

Draw one line from each device to the correct type of electromagnetic radiation. One has been done for you. [3]

(b) (i) State the name of one type of radiation that has a longer wavelength than visible light.

..................................................................................................................................... [1]

(ii) Complete the sentence about electromagnetic radiation. Use a word from the box.

amplitude frequency speed wavelength

All types of electromagnetic radiation travel through a vacuum with the same

.................................................................. [1]

[Total: 5]

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8 (a) A student rubs a plastic rod with a dry cloth, as shown in Fig. 8.1. The rod becomes negatively charged.

plastic roddry cloth

Fig. 8.1

(i) Use words from the box to complete the sentence.

air cloth electrons hand neutrons protons

The rod becomes negatively charged because ......................................... move from the ......................................... to the rod.

[2]

(ii) The student moves the rod close to a suspended, charged rod. The two rods repel each other.

State the type of charge on the suspended rod.

..................................................................................................................................... [1]

(iii) Explain your answer to (a)(ii).

...........................................................................................................................................

..................................................................................................................................... [1]

(b) A device has a metal case. Any charge on the case must be able to move to earth.

(i) Draw one ring around a material that is suitable for the connection to earth.

copper glass plastic rubber [1]

(ii) Explain your answer to (b)(i).

...........................................................................................................................................

..................................................................................................................................... [1]

[Total: 6]

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9 A student makes a circuit to switch on a 6.0 V lamp from two different switches X and Y.

Fig. 9.1 shows the circuit.

6.0 V+

–

switch X switch Y

P R

SQ

Fig. 9.1

(a) Switch X is in position P. State the position of switch Y for the lamp to be lit.

............................................................................................................................................. [1]

(b) The current in the lamp is 0.50 A when the potential difference (p.d.) across the lamp is 6.0 V. Calculate the resistance of the lamp. Include the unit.

resistance = ......................................................... [4]

(c) The student connects another 6.0 V lamp in parallel with the first lamp, as shown in Fig. 9.2.

6.0 V+

–

switch X switch Y

Fig. 9.2

Give two advantages of connecting the lamps in parallel.

...................................................................................................................................................

...................................................................................................................................................

............................................................................................................................................. [2]

[Total: 7]

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10 (a) A teacher demonstrates the action of a device. Fig. 10.1 shows the symbol for the device.

Fig. 10.1

State the name of this device.

............................................................................................................................................. [1]

(b) Fig. 10.2 shows another device being used in a circuit. The circuit contains a 6.0 V lamp.

12 V+

–

slidingcontact

C

B

A

Fig. 10.2

(i) The sliding contact of this device is at position A, as shown in Fig. 10.2.

Describe and explain the brightness of the lamp when the sliding contact is in this position.

brightness of lamp .............................................................................................................

explanation ........................................................................................................................ [2]

(ii) The teacher moves the sliding contact from position A to position B. Describe and explain what happens to the brightness of the lamp.

...........................................................................................................................................

..................................................................................................................................... [2]

(iii) The teacher moves the sliding contact from position B to position C. Suggest what happens to the lamp.

..................................................................................................................................... [1]

[Total: 6]

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11 (a) Fig. 11.1 shows in each of the diagrams a current-carrying conductor and a magnetic field pattern.

A B C

current-carryingconductor



Fig. 11.1

State the diagram which correctly shows the magnetic field around a current-carrying conductor.

............................................................................................................................................. [1]

(b) Fig. 11.2 shows three pieces of equipment.

coil

coil with 100turns of wire

sensitive centre-zerometer

bar magnet

S N

Fig. 11.2

(i) Describe how to generate and detect an electromotive force (e.m.f.) using the equipment in Fig. 11.2. You may draw a diagram.

...........................................................................................................................................

...........................................................................................................................................

...........................................................................................................................................

..................................................................................................................................... [3]

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(ii) Describe two changes that will generate a larger e.m.f. using similar equipment to that in Fig. 11.2.

...........................................................................................................................................

...........................................................................................................................................

...........................................................................................................................................

..................................................................................................................................... [2]

(c) A student connects a lamp and centre-zero galvanometer in series with a generator, as shown in Fig. 11.3.

lamp

centre-zerogalvanometergenerator G

Fig. 11.3

The student observes the galvanometer needle moving from side-to-side repeatedly.

Explain why the needle moves in this way.

...................................................................................................................................................

...................................................................................................................................................

............................................................................................................................................. [1]

[Total: 7]

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12 (a) Use words from the box to complete the sentences about the charges in an atom. Words can be used once, more than once or not at all.

negative neutral positive

The charge on the nucleus of an atom is ..........................................

The charge on a proton is ..........................................

The charge on electrons orbiting the nucleus is .......................................... [3]

(b) A nucleus of radium-226 has the nuclide notation shown.

22688Ra

(i) Determine the number of protons in a nucleus of radium-226.

..................................................................................................................................... [1]

(ii) Determine the number of neutrons in a nucleus of radium-226.

..................................................................................................................................... [1]

(iii) Radium has another isotope, radium-223.

Write the nuclide notation for radium-223 in the space.

[1]

(c) Radium-226 has a half-life of 1600 years.

A sample contains 8.0 mg of radium-226.

Calculate the time for the sample to decay until only 1.0 mg of radium-226 remains.

time = ............................................... years [2]

[Total: 8]

Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity.

To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series.

Cambridge Assessment International Education is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of the University of Cambridge Local Examinations Syndicate (UCLES), which itself is a department of the University of Cambridge.

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This document consists of 18 printed pages and 2 blank pages.

DC (KS/TP) 169309/4© UCLES 2019 [Turn over

*4702702278*

Cambridge Assessment International EducationCambridge International General Certificate of Secondary Education


PHYSICS 0625/41Paper 4 Theory (Extended) May/June 2019 1 hour 15 minutesCandidates answer on the Question Paper.No Additional Materials are required.

READ THESE INSTRUCTIONS FIRST

Write your centre number, candidate number and name on all the work you hand in.Write in dark blue or black pen.You may use an HB pencil for any diagrams or graphs.Do not use staples, paper clips, glue or correction fluid.DO NOT WRITE IN ANY BARCODES.

Answer all questions.Electronic calculators may be used.You may lose marks if you do not show your working or if you do not use appropriate units.Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each question or part question.

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0625/41/M/J/19© UCLES 2019

1 A rocket is stationary on the launchpad. At time t = 0, the rocket engines are switched on and exhaust gases are ejected from the nozzles of the engines. The rocket accelerates upwards.

Fig. 1.1 shows how the acceleration of the rocket varies between time t = 0 and time t = tf.

acceleration

0 tf0

time t

Fig. 1.1

(a) Define acceleration.

...................................................................................................................................................

............................................................................................................................................. [1]

(b) On Fig. 1.2, sketch a graph to show how the speed of the rocket varies between time t = 0 and time t = tf.

0 tf0

time t

speed

Fig. 1.2 [3]

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(c) Some time later, the rocket is far from the Earth. The effect of the Earth’s gravity on the motion of the rocket is insignificant. As the rocket accelerates, its momentum increases.

(i) State the principle of the conservation of momentum.

...........................................................................................................................................

...........................................................................................................................................

..................................................................................................................................... [2]

(ii) Explain how the principle of the conservation of momentum applies to the accelerating rocket and the exhaust gases.

...........................................................................................................................................

...........................................................................................................................................

...........................................................................................................................................

..................................................................................................................................... [2]

[Total: 8]

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2 Fig. 2.1 shows a sign that extends over a road.

1.8 m

W

1.3 m

concreteblock

P

70 cm

support post

sign

ACCIDENTSLOW DOWN

Fig. 2.1

The mass of the sign is 3.4 × 103 kg.

(a) Calculate the weight W of the sign.

W = ......................................................... [2]

(b) The weight of the sign acts at a horizontal distance of 1.8 m from the centre of the support post and it produces a turning effect about point P.

Point P is a horizontal distance of 1.3 m from the centre of the support post.

(i) Calculate the moment about P due to the weight of the sign.

moment = ......................................................... [3]

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(ii) A concrete block is positioned on the other side of the support post with its centre of mass a horizontal distance of 70 cm from the centre of the support post.

1. State what is meant by centre of mass.

....................................................................................................................................

.............................................................................................................................. [1]

2. The weight of the concrete block produces a moment about point P that exactly cancels the moment caused by the weight W.

Calculate the weight of the concrete block.

weight = ......................................................... [2]

(c) The concrete block is removed. The sign and support post rotate about point P in a clockwise direction.

State and explain what happens to the moment about point P due to the weight of the sign as it rotates.

...................................................................................................................................................

...................................................................................................................................................

............................................................................................................................................. [2]

[Total: 10]

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3 A cube of side 0.040 m is floating in a container of liquid. Fig. 3.1 shows that the surface of the liquid is 0.028 m above the level of the bottom face of the cube.

cube

liquid

pump

0.040 m

air

0.028 mvalve

Fig. 3.1

The pressure of the air above the cube exerts a force on the top face of the cube. The valve is closed.

(a) Explain, in terms of air molecules, how the force due to the pressure of the air is produced.

...................................................................................................................................................

...................................................................................................................................................

...................................................................................................................................................

............................................................................................................................................. [3]

(b) The density of the liquid in the container is 1500 kg / m3.

Calculate:

(i) the pressure due to the liquid at a depth of 0.028 m

pressure = ......................................................... [2]

(ii) the force on the bottom face of the cube caused by the pressure due to the liquid.

force = ......................................................... [2]

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(c) The valve is opened and liquid is pumped into the container. The surface of the liquid rises a distance of 0.034 m.

The cube remains floating in the liquid with its bottom face 0.028 m below the surface of the liquid.

(i) Calculate the work done on the cube by the force in (b)(ii).

work done = ......................................................... [2]

(ii) Suggest one reason why this is not an efficient method of lifting up the cube.

...........................................................................................................................................

..................................................................................................................................... [1]

[Total: 10]

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4 Gas of mass 0.23 g is trapped in a cylinder by a piston. The gas is at atmospheric pressure which is 1.0 × 105 Pa. Fig. 4.1 shows the piston held in position by a catch.

gas

catchheater

piston

cylinder

air at atmosphericpressure

Fig. 4.1

The volume of the trapped gas is 1.9 × 10–4 m3.

An electrical heater is used to increase the temperature of the trapped gas by 550 °C.

(a) The specific heat capacity of the gas is 0.72 J / (g °C).

(i) Calculate the energy required to increase the temperature of the trapped gas by 550 °C.

energy = ......................................................... [2]

(ii) The power of the heater is 2.4 W.

1. Calculate how long it takes for the heater to supply the energy calculated in (a)(i).

time = ......................................................... [2]

2. In practice, it takes much longer to increase the temperature of the gas by 550 °C using the heater.

Suggest one reason for this.

....................................................................................................................................

....................................................................................................................................

.............................................................................................................................. [1]

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(b) When the temperature of the gas has increased by 550 °C, its pressure is 2.9 × 105 Pa. The catch is then released allowing the piston to move. As the piston moves, the temperature of the gas remains constant.

(i) State and explain what happens to the piston.

...........................................................................................................................................

...........................................................................................................................................

..................................................................................................................................... [2]

(ii) Determine the volume of the gas when the piston stops moving.

volume = ......................................................... [2]

[Total: 9]

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5 Liquids and gases are two states of matter.

(a) In both boiling and evaporation, a liquid changes into a gas.

(i) State two ways in which boiling differs from evaporation.

1. .......................................................................................................................................

...........................................................................................................................................

2. .......................................................................................................................................

........................................................................................................................................... [2]

(ii) Before injecting a patient, a doctor wipes a small amount of a volatile liquid on to the patient’s skin.

Explain, in terms of molecules, how this procedure cools the patient’s skin.

...........................................................................................................................................

...........................................................................................................................................

...........................................................................................................................................

...........................................................................................................................................

..................................................................................................................................... [4]

(b) Gases can be compressed but liquids are incompressible.

Explain, in terms of molecules, why liquids are incompressible.

...................................................................................................................................................

...................................................................................................................................................

............................................................................................................................................. [2]

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BLANK PAGE

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6 Green light of frequency 5.7 × 1014 Hz is travelling in air at a speed of 3.0 × 108 m / s. The light is incident on the surface of a transparent solid.

Fig. 6.1 shows the wavefronts and the direction of travel of the light in the air.

air

wavefront

solid

Fig. 6.1

The light travels more slowly in the transparent solid.

(a) Explain, in terms of the wavefronts, why the light changes direction as it enters the solid. You may draw on Fig. 6.1 as part of your answer.

...................................................................................................................................................

...................................................................................................................................................

...................................................................................................................................................

............................................................................................................................................. [3]

(b) The refractive index of the transparent solid is 1.3.

(i) The light is incident on the surface of the solid at an angle of incidence of 67°.

Calculate the angle of refraction of the light in the solid.

angle of refraction = ......................................................... [2]

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(ii) Determine the wavelength of the green light in the transparent solid.

wavelength = ......................................................... [4]

[Total: 9]

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7 Fig. 7.1 shows a circuit diagram that includes component X.

A

20 Ω

X

30 Ω

Fig. 7.1

(a) State the name of component X.

............................................................................................................................................. [1]

(b) The electromotive force (e.m.f.) of the battery is E. The switch is closed.

The potential difference (p.d.) across the 30 Ω resistor is V30. The p.d. across the 20 Ω resistor is V20. The p.d. across component X is VX.

State an equation that relates VX to:

(i) V30

..................................................................................................................................... [1]

(ii) E and V20.

..................................................................................................................................... [1]

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(c) The e.m.f. of the battery is 6.0 V and the resistance of component X is 15 Ω.

Calculate:

(i) the total resistance of the circuit

resistance = ......................................................... [3]

(ii) the ammeter reading.

reading = ......................................................... [2]

(d) The temperature of component X increases.

State and explain what happens to the ammeter reading.

...................................................................................................................................................

...................................................................................................................................................

............................................................................................................................................. [2]

[Total: 10]

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8 A student turns the handle of an alternating current (a.c.) generator and the coil rotates.

Fig. 8.1 represents the structure of the a.c. generator.

N

coil

slip rings

voltageoutput

handle

S

coil

brush

Fig. 8.1

(a) There is an alternating voltage output between the two terminals.

(i) Explain why rotating the coil produces an output voltage.

...........................................................................................................................................

...........................................................................................................................................

...........................................................................................................................................

..................................................................................................................................... [3]

(ii) State the position of the rotating coil when the alternating output voltage is at a maximum value and explain why the maximum output occurs at this position.

...........................................................................................................................................

...........................................................................................................................................

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(b) A lamp and an open switch are connected in series to the output terminals of the a.c. generator.

The switch is closed and the lamp lights up. The student has to apply a greater force on the handle.

Explain why a greater force is needed to keep the lamp lit.

...................................................................................................................................................

...................................................................................................................................................

...................................................................................................................................................

............................................................................................................................................. [3]

[Total: 8]

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9 (a) Fig. 9.1 shows a beam of α-particles moving towards a thin sheet of gold in a vacuum.

beam of α-particles

vacuum

detectors

gold sheet

Fig. 9.1

Detectors in the region surrounding the thin gold sheet detect the α-particles and determine the number of particles that travel in various directions.

State and explain what can be deduced from the following observations.

(i) The majority of the α-particles pass through the gold sheet undeflected and are detected on the far side.

deduction ...........................................................................................................................

explanation ........................................................................................................................

..................................................................................................................................... [2]

(ii) A small number of α-particles are deflected as they pass through the gold sheet.

deduction ...........................................................................................................................

explanation ........................................................................................................................

..................................................................................................................................... [2]

(iii) A very small number of α-particles are deflected through very large angles or return back the way they came.

deduction ...........................................................................................................................

explanation ........................................................................................................................

..................................................................................................................................... [2]

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0625/41/M/J/19© UCLES 2019

(b) A beam that consists of both α-particles and β-particles is passed through a region of space where there is a magnetic field perpendicular to the direction of the beam.

State two ways in which the deflection of the α-particles differs from that of the β-particles.

1. ...............................................................................................................................................

2. ............................................................................................................................................... [2]

[Total: 8]

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0625/41/M/J/19© UCLES 2019

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To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series.

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© UCLES 2019 [Turn over


PHYSICS 0625/11 Paper 1 Multiple Choice (Core) May/June 2019 MARK SCHEME

Maximum Mark: 40

Published

This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. Mark schemes should be read in conjunction with the question paper and the Principal Examiner Report for Teachers. Cambridge International will not enter into discussions about these mark schemes. Cambridge International is publishing the mark schemes for the May/June 2019 series for most Cambridge IGCSE™, Cambridge International A and AS Level and Cambridge Pre-U components, and some Cambridge O Level components.

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0625/11 Cambridge IGCSE – Mark Scheme PUBLISHED

May/June 2019

© UCLES 2019 Page 2 of 3

Question Answer Marks

1 A 1

2 A 1

3 D 1

4 A 1

5 C 1

6 C 1

7 D 1

8 D 1

9 A 1

10 C 1

11 D 1

12 A 1

13 C 1

14 A 1

15 B 1

16 A 1

17 A 1

18 A 1

19 D 1

20 B 1

21 D 1

22 B 1

23 B 1

24 B 1

25 B 1

26 B 1

27 D 1

28 D 1

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May/June 2019



29 B 1

30 D 1

31 B 1

32 C 1

33 B 1

34 B 1

35 D 1

36 B 1

37 D 1

38 A 1

39 B 1

40 D 1

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PHYSICS 0625/21 Paper 2 Multiple Choice (Extended) May/June 2019 MARK SCHEME

Maximum Mark: 40

Published

This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. Mark schemes should be read in conjunction with the question paper and the Principal Examiner Report for Teachers. Cambridge International will not enter into discussions about these mark schemes. Cambridge International is publishing the mark schemes for the May/June 2019 series for most Cambridge IGCSE™, Cambridge International A and AS Level and Cambridge Pre-U components, and some Cambridge O Level components.

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May/June 2019



1 C 1

2 C 1

3 D 1

4 C 1

5 C 1

6 D 1

7 D 1

8 C 1

9 C 1

10 B 1

11 C 1

12 A 1

13 C 1

14 A 1

15 A 1

16 B 1

17 D 1

18 B 1

19 B 1

20 C 1

21 B 1

22 D 1

23 D 1

24 B 1

25 A 1

26 D 1

27 D 1

28 B 1

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May/June 2019



29 C 1

30 B 1

31 B 1

32 A 1

33 B 1

34 C 1

35 D 1

36 C 1

37 D 1

38 C 1

39 B 1

40 B 1

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PHYSICS 0625/31 Paper 3 Core Theory May/June 2019 MARK SCHEME

Maximum Mark: 80

Published

This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began, which would have considered the acceptability of alternative answers. Mark schemes should be read in conjunction with the question paper and the Principal Examiner Report for Teachers. Cambridge International will not enter into discussions about these mark schemes. Cambridge International is publishing the mark schemes for the May/June 2019 series for most Cambridge IGCSE™, Cambridge International A and AS Level and Cambridge Pre-U components, and some Cambridge O Level components.

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May/June 2019


Generic Marking Principles

These general marking principles must be applied by all examiners when marking candidate answers. They should be applied alongside the specific content of the mark scheme or generic level descriptors for a question. Each question paper and mark scheme will also comply with these marking principles.

GENERIC MARKING PRIN

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