PLEASE SEE BACK COVER FOR A LIST OF THE YEAR LEVELS THAT SHOULD SIT THIS PAPER E PAPER DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED. 45 QUESTIONS TIME ALLOWED: 1 HOUR STUDENT’S NAME: Read the instructions on the ANSWER SHEET and fill in your NAME, SCHOOL and OTHER INFORMATION. Use a 2B or B pencil. Do NOT use a pen. Rub out any mistakes completely. You MUST record your answers on the ANSWER SHEET. Mark only ONE answer for each question. Your score will be the number of correct answers. Marks are NOT deducted for incorrect answers. There are 45 MULTIPLE-CHOICE QUESTIONS (1–45). Use the information provided to choose the BEST answer from the four possible options. On your ANSWER SHEET fill in the oval that matches your answer. You may use a calculator and a ruler. 2009
Transcript
PleASe See bAck coveR foR A liStof the yeAR levelS thAt ShoUld
Sit thiS PAPeR
EPaPEr
do not oPEn this BooKlEt until instructEd.
45 QuEstionstimE allowEd: 1 HOUR
studEnt’s namE:
Read the instructions on the answEr shEEt and fill in yournamE, school and othEr information.Use a 2B or B pencil.Do not use a pen.Rub out any mistakes completely.
You must record your answers on the answEr shEEt.
Mark only onE answer for each question.Your score will be the number of correct answers.Marks are not deducted for incorrect answers.
There are 45 multiPlE-choicE QuEstions (1–45).Use the information provided to choose the BEst answer from the four possible options.On your answEr shEEt fill in the oval that matches your answer.
4. A spring balance measures the weight and mass of an object. Weight is the force of attraction between an object and the Earth. Weight is measured in newtons (N) and mass is measured in kilograms (kg).
0
0.2
0.4
0.6
0.8
1.0
0
2
4
6
8
10
kg N
Springbalance
The diagram shows a spring balance measuring the weight of an object.
What is the weight of the object in newtons (N)?
(A) 0.37(B) 0.43(C) 3.7(D) 4.3
5. The table gives information about the properties of some gemstones.
11. Shanta considered cockroaches a pest. She read on a website that cockroaches preferred particular environmental conditions of temperature, moisture and light.
She set up eight environments to investigate which conditions attracted the greatest number of cockroaches.
cool dry light cool dry dark cool moist darkwarm dry light warm moist dark warm moist light
XY
(A)(B)(C)(D)
coolcoolcoolcool
drydry
moistmoist
Conditions for environment X Conditions for environment Ylightdarkdarklight
warmwarmwarmwarm
drymoistmoistdry
lightlightdarkdark
To make a fair test, what conditions did Shanta need to set for environments X and Y?
cool dry light cool dry dark cool moist darkwarm dry light warm moist dark warm moist light
XY
(A)(B)(C)(D)
coolcoolcoolcool
drydry
moistmoist
Conditions for environment X Conditions for environment Ylightdarkdarklight
warmwarmwarmwarm
drymoistmoistdry
lightlightdarkdark
12. Vincent took a photograph of a Melissa took a photograph of the same sculpture using sculpture as shown below. the same camera setting at exactly the same time as Vincent. Her photograph is shown below.
KEY
sculpture Vincent Melissa
(A) (B) (C) (D)
Which option shows Vincent’s and Melissa’s positions relative to each other and to the sculpture?
15. The diagram shows the bones of a hand. The view shows a right hand with palm up.
ulna
radius
carpalsmetacarpalsphalanges
armwristhand
skin outline
Which bones are found in the palm of the hand?
(A) metacarpals(B) phalanges(C) radius(D) ulna
16. The graph and table give information about different types of clouds. Clouds are classified by combining a description of their altitude and characteristics.
0
1
2
3
4
5
6
7
8
9
Alti
tude
(km
)
high
med
ium
low
verti
cally
bui
ldin
g
Cloud levels
Cirr
o
Alto
Nim
bo
Cum
ulon
imbu
s
Types of Cloud
cirrus cumulusstratusnimbus
wispyheapedlayeredrain bearing
Name Characteristic
Which option describes heaped white clouds at an altitude of 7 km?
19. Sonya investigated how goldfish interact with their environment.
She placed some goldfish into three different fish tanks filled with water from the same tap. She kept the tanks in the same room. She placed the same amount of food per fish into each tank daily. She observed the fish for eight weeks.
The diagrams show her observations.
filterair pumpWeek 1 Week 8
Tank 1
Tank 2
Tank 3
Which conclusion about the goldfish would be supported by Sonya’s observations?
(A) Goldfish have a lifespan of eight weeks.(B) The more food fish eat, the bigger they grow.(C) In a tank of a particular size, goldfish grow larger if there are fewer of them.(D) The smaller the goldfish, the more of them can be kept in a fish tank of a particular size.
20. The table lists the mineral composition of a granite rock.
garnet
orthoclase
plagioclase
pyroxene
quartz
KEY(A)
(B)
(C)
(D)
MineralPercentage
garnet5
orthoclase50
plagioclase25
pyroxene5
quartz15
Which graph shows the mineral composition of this rock?
21. The table gives information about water at various depths in an ocean.
Depth (km)0
500100015002000
Temperature (°C) 24 18 4 4 3
Pressure (kb)02469
Dissolved oxygen (mg/L) 23 20 14 8 6
According to the table, which of the following statements is correct?
(A) Water pressure increases as dissolved oxygen increases.(B) Water temperature increases as water pressure increases.(C) Water temperature decreases as the depth of the water decreases.(D) Dissolved oxygen decreases as the depth of the water increases.
22. Jake set up two glass jars as shown and placed them in the sun. He recorded the temperature in each jar for two hours.
100
90
80
70
60
50
40
30
20
10
0C
100
90
80
70
60
50
40
30
20
10
0C
jar contains carbon dioxide
black cardboard inside jar
clear plastic
thermometer
jar contains air
Jar X Jar Y
greenhouse gases
reflection
adsorption
reflectedinfrared radiation
absorpedinfrared radiation
greenhouse gases
atmosphere
space
KEY
space
Sun
atmosphere
greenhouse gases
Earth
What hypothesis was Jake most likely testing?
(A) The temperature in a closed environment remains constant.(B) A closed environment warms faster than an open environment.(C) Carbon dioxide environments warm faster than air environments.(D) Dark coloured environments warm faster than light coloured environments.
23. Soil pH is a measure of soil acidity or alkalinity. The pH of the soil affects the type of nutrients that are available to plants from soil. Soil that is pH neutral is neither acidic nor alkaline.
Tim investigated the effect of pH on the germination of a particular type of seed. The diagram shows his experimental setup and his observations for the first five weeks of growth.
slig
htly
acid
icne
utra
lsl
ight
lyal
kalin
e
Type
of s
oil
ObservationsWeek 1 Week 3 Week 4 Week 5Week 2
Tim was unhappy with his results and decided to improve his method.
Which change to Tim’s method would not improve the design of his investigation?
(A) place three seeds into each of the pots(B) give each plant 250 mL of water each day(C) place the slightly alkaline soil only into a larger pot(D) give each plant the same amount of time in sunlight each day
24. Yeast can be used to make bread. When a yeast mixture ferments, foam appears on the surface.
Peter made some yeast mixtures, left them in a covered bowl at room temperature and recorded his observations after 10 minutes.
What conclusion can Peter draw from his experiment?
(A) Yeast mixtures can ferment only when left covered, at room temperature.(B) Yeast mixtures can ferment only with flour added.(C) Yeast requires a warm liquid to ferment.(D) Yeast requires sugar to ferment.
25. Marina found that she was often throwing away the end of a loaf of bread because of mould. She decided to test if mould grew faster on brown or white bread.
Using the same brand of pre-packaged bread, Marina placed moist pieces of both white and brown bread under a hot lamp and checked for new mould growth every six hours.
The purpose of the hot lamp was to
(A) provide adequate lighting.(B) keep the surrounding air dry.(C) speed up the growth of mould.(D) generate a variable temperature control.
26. Most flowing water carries solid particles in it. Filters are used to remove the solid particles.
• Fine filters have smaller spaces between the substances that make up the filter than coarse filters.• Coarse filters remove large solid particles from the water passing through them.• Fine filters remove small solid particles from the water passing through them.• When a filter is clogged water will no longer flow.
The diagram shows four different filters, graded from fine to coarse, in different arrangements.
Which arrangement of filters would most likely allow the system to continue filtering the water for the longest period?
unfilteredwater in
filtered water out
(A) (B) (C) (D)
27. Carbon dioxide (CO2) chemically reacts with water vapour (H2O) in the atmosphere to form carbonic acid (H2CO3). This is the reason rainwater is naturally slightly acidic.
for questions 28 and 29 use the information below.
Animals are classified into groups. A class is a large group to which many different types of animals belong. They also belong to smaller groups: an order, a family, a genus and a species. A species is a group to which only one type of animal belongs.
The class Aves is the group of all birds. The classification key below shows the groups to which six different species of birds belong.
class
family
genus
species
order
Psittacidae
Aves
CharadriidaeLaridae
Larus Vanellus
Vanellus miles (2)
Larus canus (1)
Charadiiformes Psittaciformes
Cacatuidae
Cacatua
Cacatua galerita (3)
Eolophus
Eolophus roseicapilla (4)
TrichoglossusAlisterus
Alisterus scapularis (5)
Trichoglossus haematodus (6)
(7)
(6)(1) (2) (3) (5)(4)28. To which group do vanellus miles and Cacatua galerita both belong?
for questions 30 and 31 use the information below.
The density of an object is given by the formula:
density = mass ÷ volume
Andrea placed a block and a ball into identical containers with the same amount of water. The diagram shows what happened.
Type of woodbamboo
gumpineteak
Density (kilograms per cubic metre) 0.4 1.0 0.53 0.65
block
ball
KEY
30. What conclusion can Andrea draw from this information only?
(A) The mass of the ball is larger than the mass of the block.(B) The volume of the ball is larger than the volume of the block.(C) The mass and density of the ball are larger than the mass and density of the block.(D) The volume and density of the ball are larger than the volume and density of the block.
31. The table gives the densities of four different types of wood.
Type of woodbamboo
gumpineteak
Density (kilograms per cubic metre) 0.4 1.0 0.53 0.65
block
ball
KEY
The scale diagrams below show the relative volumes of a 1 kg mass of the four different types of wood.
for questions 34 and 35 use the information below.
All air contains water vapour in varying quantities. Humidity is the measure of the amount of water vapour in the atmosphere. A state of saturation exists when the air is holding the maximum amount (100%) of water vapour possible at the existing temperature and pressure. The dewpoint temperature is the temperature to which air would have to cool in order to reach saturation.
The graph shows the dewpoint temperature at normal atmospheric pressure for some humidities.
0
10
20
30
40
50
60
–10 0 10 20 30 40 50Temperature (°C)
Dewpoint for Various Humidities
Am
ount
of w
ater
in a
ir (g
/m3 )
34. What is the dewpoint temperature (°C) for air containing 15 g/m3 of water in the air?
(A) –5(B) 0(C) 12(D) 18
35. Air from an air conditioner at normal atmospheric pressure contained 10 g/m3 of humidity at a dewpoint temperature of 11 °C. If air at this temperature contained only 5 g/m3 of water vapour, its relative humidity would be 50%.
What would be the relative humidity of the air if it contained 20 g/m3 water vapour at a temperature of 30 °C?
36. The depth chart of a pond is shown below. Contour lines join points of the same depth. Four cross-sections of the pond have been investigated: W – W1, X – X1, Y – Y1 and Z – Z1.
02468
101214
Dep
th (m
)
Cross-section
2
4
6
810 12
4
0
2
W
W1
X
X1
Y
Y1
Z
Z10 Depth chart of pond
KEY
4
contour line
The diagram below shows the depths across one of the cross-sections.
40. A chemical compound is a chemical substance consisting of two or more different chemical elements that are bonded chemically, and joined together in fixed ratios.
A chemical formula identifies each element in the compound by its chemical symbol and indicates the number of atoms of each element found in each particle of the compound.
The table gives the name and chemical formula of four common chemical compounds. The key gives the symbol for each of the elements found in the compounds.
Chemical compound calcium carbonate sodium sulphate sodium phosphate ammonium nitrate
What is the most likely meaning of the affix ’-ate’ at the end of each compound’s name?
That the compounds contain
(A) three different elements.(B) a chemical called ‘ate’.(C) nitrogen.(D) oxygen.
41. An analogue watch face can be used to find the direction north (N).
An observer orientates a watch face so that the 12 o’clock position is pointed at the Sun. The direction halfway between the hour hand and the 12 o’clock position is the direction north.
The map shows the position of an observer, the direction of north (N) from the observer and four possible directions in which the Sun might be found. The watch face shows the time of day of the observation.
NW X
Y
Z
observer
In which direction was the Sun at this time?
(A) direction W (B) direction X (C) direction Y (D) direction Z
42. The higher the glide ratio of an aircraft’s wings, the further the aircraft will glide when it is released at a certain height.
The scale diagram shows four delta-winged model aircraft with different wing shapes.
Average chord = ( root chord + tip chord ) ÷ 2
Glide ratio = wingspan ÷ average chord
fuselage
tail plane
weightednose cone
D1 D1
wingspan
D3 D3
D2 D2
root chord
tipchordD4 D4
The width of a delta wing at the tip chord is often different from the width at the root chord. Where the wing comes to a point at its tip, the tip chord = 0.
The formula to find the average chord (average width) is given below.
Average chord = ( root chord + tip chord ) ÷ 2
The average chord is then used to find the glide ratio as shown below.
glide ratio = wingspan ÷ average chord
Each model aircraft was released from the same height under the same conditions.
Which option lists the wing shapes in order from the shortest glide distance to the longest glide distance?
43. Filtering separates mixtures of liquids and solids. Liquids that have passed through a filter are called filtrates.
Angie read on a website that soil contains materials that are soluble (can dissolve) in water.
To investigate this, Angie mixed a spoonful of soil from her garden into a glass jar containing 200 mL of water from her tap.
Then she carried out the following steps:
Step 1: She filtered the mixture through a coarse filter. Step 2: She filtered filtrate 1 through a fine filter. Step 3: She evaporated the final filtrate (filtrate 2) that was produced.
The diagram gives information about the steps taken during this process.
The purpose of the tap water in Jar Y was to ensure there was no soluble material in the tap water
to ensure there was no soluble material in the tap water
to test whether soluble materials make water evaporatemore quicklyto test whether soluble materials make water evaporatemore quickly
If the information she read was correct, what would Angie find when filtrate 2 had evaporated, and what was the purpose of the glass jar of tap water included in step 3?
for questions 44 and 45 use the information below.
A lever is a simple machine that helps to do work. It consists of a bar that is free to move about a point, the fulcrum (F). When effort (E) is applied to the bar, the lever moves about the fulcrum helping to move the load (L). By repositioning the fulcrum, effort and load, three different classes of lever are produced as shown below.
L LL
F F F
E
EE
first class lever second class lever third class lever
(A)(B)(C)(D)
Figure 1 wheeled hand trailer
first classfirst class
second classsecond class
Figure 2 using a paddle
second classthird class
second classthird class
Class of leverFigure 3
using oarssecond class
first classsecond class
first class
Figure 1moving the boat to the wateron a wheeled hand trailer
Figure 2paddling the boatusing a paddle
Figure 3rowing the boat using a pair of oars
direction of movement oar in rowlock
Three methods of moving a boat are shown below. Each method uses a class of lever to help do the work.
L LL
F F F
E
EE
first class lever second class lever third class lever
(A)(B)(C)(D)
Figure 1 wheeled hand trailer
first classfirst class
second classsecond class
Figure 2 using a paddle
second classthird class
second classthird class
Class of leverFigure 3
using oarssecond class
first classsecond class
first class
Figure 1moving the boat to the wateron a wheeled hand trailer
Figure 2paddling the boatusing a paddle
Figure 3rowing the boat using a pair of oars
direction of movement oar in rowlock
44. Which class of lever is being used in each case?
L LL
F F F
E
EE
first class lever second class lever third class lever
(A)(B)(C)(D)
Figure 1 wheeled hand trailer
first classfirst class
second classsecond class
Figure 2 using a paddle
second classthird class
second classthird class
Class of leverFigure 3
using oarssecond class
first classsecond class
first class
Figure 1moving the boat to the wateron a wheeled hand trailer
Figure 2paddling the boatusing a paddle
Figure 3rowing the boat using a pair of oars
direction of movement oar in rowlock
45. A first class lever changes the direction of the force, that is, a downward force of effort results in an upward force on the load. When levers help do work there is a mechanical advantage. Mechanical advantage (MA) of a first class lever exists if the force (E) required to lift a load is less than the downward force of the load (L).
Which modification to the first class lever would increase its mechanical advantage?
(A) increase the size of the load (L)(B) increase the size of the fulcrum (F)(C) shorten the distance between the fulcrum (F) and the load (L)(D) shorten the distance between the fulcrum (F) and the effort (E)
Copyright in this booklet is owned by Educational Assessment Australia, UNSW Global Pty Limited unless otherwise indicated. Every effort has been made to trace and acknowledge copyright for materials used. Educational Assessment Australia apologises for any accidental infringement and welcomes information to redress the situation.
The following year levels should siT This PaPer:
ausTralia: year 7Brunei: form 1indonesia: year 8Malaysia: form 1new zealand: year 8PaCifiC: year 7singaPore: Primary 6souTh afriCa: grade 7
