ExercisesF5Mid-Year2012

8/13/2019 ExercisesF5Mid-Year2012

1/14

Revision Mid Year Exam 2012 Date: ...

__________________________________________________________________________________

MODULE PRA-EXAM

MID YEAR 2012

FORM 5

Compile by :-

EN. ADNAN BIN SHAMSUDIN

Dip Sc (UiTM), BSc (UTM), Dip Edu (UTM)

PHYSICS

PAPER 2


2/14


__________________________________________________________________________________

Section A[ 60 marks ]

Answer all the question from this section.

1. Diagram 8.1 shows the graph of force against extension for three springs, P, Q and R.

(a) (i) A law state that the extension of a spring is directly proportional to the force applied ifthe elastic limit of the spring is not exceeded.

______________________________________________________________________

[1 mark]

(ii) On the graph in Diagram 8.1, mark X at the elastic limit for spring P and Q.

[1 mark]

(b)The spring stores energy when it is extended. Calculate the energy stored in spring R whenits extension is 8.0 cm.

[3 marks]


3/14


__________________________________________________________________________________

(c)Diagram 8.2 shows the baby sleeping in the cradle.

Diagram 8.2

Table 8.1 shows the characteristics of 3 types of spring K, L and M.

Based on Table 8.1 state suitable characteristics of the spring so that it can be used to make a

cradle oscillate at suitable frequency.

Give reason for suitability of the characteristics.

(i) Extension of spring:____________________________________________________________________Reasons:

____________________________________________________________________

(ii) Density:____________________________________________________________________

Reason:

___________________________________________________________________

(iii) Elastic limit:____________________________________________________________________

Reason:____________________________________________________________________


4/14


__________________________________________________________________________________

(d) Determine the most suitable spring that can to be used to make the cradle._________________________________________________________________________

[1 mark][Johor 2011]

2. Diagram 6.1 shows a light ray entering a glass prism.[Refractive index of glass = 1.51]

Diagram 6.1

(i) Calculate the critical angle, c, of the glass prism.

[2 marks]

(ii) State the value of the incident angle,

[1 mark]

(iii) Compare the critical angle, c, in 6(a)(i) with angle of incidence, i._________________________________________________________________________

[1 mark]

(iv) Complete the ray diagram in Diagram 6.1. [1 mark](b) (i) Name the phenomenon that has occurred to the light ray in 6(a)(iv).

________________________________________________________________________

[1 mark]

(ii) State two conditions for this phenomenon to occur.

________________________________________________________________________

_________________________________________________________________________

[2 marks]


5/14


__________________________________________________________________________________

(c) Diagram 6.2 shows an optical fibre which consist of two layers of glass with different

refractive indices.

Complete the ray diagram to show how light propagates through optical fibre.

[1 mark][Kedah 2011]

3. Diagram 2 shows a path of light ray being refracted in liquid P.

Diagram 2

(a) What is meant by refractive index.______________________________________________________________________

[1 mark]

(b) Determine the refractive angle in liquid P.

[1 mark]

(c) Calculate the refractive index for liquid P.

[2 marks]


6/14


__________________________________________________________________________________

(d) In diagram 2, draw the path ray after passing point X.[1 mark][N9 2011]

4. Diagram 4.1 shows a mirror that is fixed in certain area in a mini market. The purpose of themirror is to help owner of the mini market to monitor their customer.

(a) State the type of mirror used._____________________________________

[1 mark]

(b) What is the advantage of the mirror as mentioned is (a) compare to plane mirror?______________________________________________________________________

[1 marks]

(c) In Diagram 4.2, C is the centre of curvature and F is the focal of the mirror.

(i) In Diagram 4.2, draw a ray diagram to show the position of the image.(ii) State the characteristics of the image formed.

[1 mark]


7/14


__________________________________________________________________________________

(d) What happens to the size of image when the curvature of convex mirror is decreases?______________________________________________________________________

[1 mark][SBP 2011]

5. Diagram 7.1 and Diagram 7.2 show circuits of three identical bulbs arranged in two differentways. Each bulb has a resistance of 4 .

(a) Name the circuit arrangement in Diagram 7.1___________________________________________________________________

[1 mark]

(b) (i) Calculate the effective in each diagram

[3 marks]

(ii) State which circuit will produce greate brightness of the bulb.________________________________________________________________

[1 mark]

(iii) Give two reasons for your answer in (b)(ii)________________________________________________________________

________________________________________________________________

[2 marks]


8/14


__________________________________________________________________________________

(c) Diagram 7.3 shows an illuminating torch light.

It s found that the torch light is not bright enough even when new cells are used. A

modicaftion is required to make it light brighter.

Suggest the modification that needs to be done through these aspects:

(i) Number of cells________________________________________________________________

[1 mark]

(ii) The way the cells are arranged________________________________________________________________

[1 mark]

(iii) Internal resistance of the cell________________________________________________________________

[1 mark]

Give reason

________________________________________________________________

[1 mark][sbp2011]

6. Diagram 6.1 and Diagram 6.2 show an experiment is carried out to investigate a law of

gas. A column of air is trapped in the capillary tube and is heated for a period of time.

Diagram 6.1 Diagram 6.2 (a)


9/14


__________________________________________________________________________________

(a) What is meant by heat?

_________________________________________________________________________

[1 mark]

(b) (i) Compare the length of the air trapped in the capillary tube in Diagram 6.1 and

Diagram 6.2.____________________________________________________________________

[1 mark]

(ii) Compare the temperature of the air trapped in the capillary tube in Diagram 6.1 and

Diagram 6.2.

__________________________________________________________________

[1 mark]

(iii) Name the physical quantity represented by the length of the air trapped.

__________________________________________________________________

[1 mark]

(iv) What is the relationship between the physical quantity in (b)(iii) and the

temperature?

____________________________________________________________________

[1 mark]

(d) Name the physics law involved in (a)(iv)._______________________________________________________________________[1 mark]

6. Figure 3 shows the arrangement of the apparatus used to determine the atmosphere pressure in alaboratory. The length of the glass tube is 100 cm and the atmosphere pressure in the lab is 76

cm Hg.

Figure 3

(a) Name the apparatus shown in figure 3._______________________________________________

[1 mark]


10/14


__________________________________________________________________________________

(b) What is X?________________________________________________

[1 mark]

(c) (i) What is the value of H?____________________________________________________________________

[1 mark]

(ii) What happen to height H, when this apparatus is submerged in water?____________________________________________________________________

[1 mark]

(iii) Give reason for your answer in (c)(i)____________________________________________________________________

[ 1 mark]

(e)

State one application of atmosphere pressure in everday life._________________________________________________________________________

[1 mark]


11/14


__________________________________________________________________________________

Paper 2

Section B

1. Diagram 9.1 and Diagram 9.2 show light rays from two identical objects passing through twoidentical convex lens. Both lenses produce real images. F is the focal point for the lens.

(a) (i) Name the phenomenon involved.

[1 mark ]

(ii) Observe Diagram 9.1 and Diagram 9.2. Compare the object distance, the size of the

image and the power of the lens. Relate the size of the image with the object distance.

[4 mark ]

(b) Diagram 9.3 shows the structure of a simple camera.

(i) Explain how the camera is able to capture the image of a distant object.

[3 marks ]


12/14


__________________________________________________________________________________

(ii) State the range of the object distance where the image formed is sharp.

[1 mark]

(c) A student is given two convex lenses , R and S. The focal length of R and S are 20 cm and 5

cm respectively. Suggest and explain how to build a microscope which produces a sharp

image and magnified image based on the following aspects:(i) Arrangement of lenses

(ii) Position of object

(iii) Position of the first image

(iv) Distance between two lenses.

[8 marks]

(d) Suggest two modifications that need to be done to the microscope to produce a bigger final

image.

[2 marks]

2. Diagram 12.1 shows the arrangement of a voltmeter, ammeter, battery, switch and three bulbs.

(a) Name the physic quantity measured by the voltmeter.

[1 mark]

(b) (i) Draw a circuit diagram that represent the arrangement in Diagram 12.1 by

using correct symbols.

(ii) All the bulbs are then arranged in parallel. By using symbols, draw the possible

arrangement of bulbs in parallel.

[4 marks]


13/14


__________________________________________________________________________________

(c) Table 12.1 shows four heating elements F, G, H and J with different specifications. Threeidentical heating panels are needed to be fixed on three sides of an electric dryer.

(d) Diagram 12.2 shows an electric bulb labeled 40W 240V.

(i) State the energy transformation in the bulb.

[1 mark]

(ii) Calculate

- the current flows in the filament of the bulb.

- the unit of energy consumed 8 hours in 20 days.

[4 marks]

[Tggnu]

`

You are required to determine the most suitable heating element that can produce highest

amount of heat faster.

Study the specifications of all the four heating elements based on the following aspects:

(i) Diameter of the wire.

(ii) Type of heating panel

(iii) Arrangement of three heating panels.


14/14


__________________________________________________________________________________

(iv) Melting point of the wire.

Explain the suitability of each aspects and then determine the most suitable heating element.

Give a reason of your choice.

Date post:	04-Jun-2018
Category:	Documents
Upload:	baskaran-manogaran
View:	222 times
Download:	0 times

ExercisesF5Mid-Year2012

Documents