State the
THE APPLE INTERNATIONAL SCHOOL, DUBAI
Term 3 Major Assessment – June 2024
Revision worksheet - Physics
Which statement describes the motion of the ball?
2
3
A
The acceleration is not constant.
B
The acceleration is negative.
C
The speed is decreasing.
D
The velocity is constant.
Which statement correctly describes the effects of placing a heavy load in a car?
A
It is easier to accelerate the car and easier to bring the car to rest.
B
It is easier to accelerate the car but more difficult to bring the car to rest.
C
It is more difficult to accelerate the car and more difficult to bring the car to rest.
D
It is more difficult to accelerate the car but easier to bring the car to rest.
An object of mass 1.2 kg is moving with a velocity of 2.0 m / s when it is acted on by a force of
4.0 N. The velocity of the object increases to 5.0 m / s.
For what period of time does the force act on the object?
A
0.90 s
B
1.1 s
C
1.5 s
D
3.6 s
4
The mass of a measuring cylinder is 190 g.
400 cm3 of liquid is put into the measuring cylinder.
The total mass of the measuring cylinder and the liquid is 560 g.
Four solid objects are lowered in turn into the liquid. The densities of the objects are shown.
1
0.40 g / cm3
2
0.90 g / cm3
3
1.2 g / cm3
4
2.7 g / cm3
Which objects will float in the liquid?
A
5
1 only
B
1 and 2 only
C
1, 2 and 3
D
3 and 4 only
The diagram shows a wooden beam PQ, of negligible weight, which is attached to a wall by a
hinge at P and kept in a horizontal position by a vertical rope attached at Q.
The beam is 3.0 m in length.
A man of weight 800 N walks along the beam from P to Q.
wall
man
rope
beam
P
Q
hinge
What is the distance of the man from P when the tension in the rope at Q becomes equal to
500 N?
A
6
B
1.1 m
C
1.9 m
D
2.5 m
Which energy resource does not have the Sun as the original source?
A
7
0.53 m
Coal
B geothermal
C hydroelectric
D wind
A gas is heated in a sealed container. The volume of the container does not change. What happens
to the molecules of the gas?
A
The average distance between molecules increases.
B
The average kinetic energy of the molecules increases.
C
The mass of each molecule increases.
D
The volume of each molecule increases
8
The diagram shows a solid block resting on a bench. The dimensions of the block are shown.
40 cm
20 cm
80 cm
Q
bench
P
On which labelled surface should the block rest to produce the smallest pressure on the bench?
9
A
P
B
Q
C
R
D
P, Q and R produce the same pressure
The pressure due to the liquid on an object immersed in that liquid is 4500 Pa.
The density of the liquid is 900 kg / m3.
What is the depth of the object below the surface of the liquid?
A
0.5 cm
B
2.0 cm
C
50 cm
D
200 cm
10 Water in a beaker evaporates when left on a bench for a period of time.
Which three factors all affect the rate of evaporation of the water?
A
wind speed, surface area, temperature
B
wind speed, temperature, volume
C
wind speed, surface area, volume
D
surface area, temperature, volume
11 A solid is heated causing it to expand.
What effect does this have on its mass and on its density?
mass
density
A
decreases
decreases
B
decreases
stays constant
C
stays constant
decreases
D
stays constant
stays constant
12 The diagrams show four blocks of steel. The blocks are all drawn to the same scale.
The same quantity of thermal energy is given to each block.
Which block shows the greatest rise in temperature?
A
B
C
D
13 Two freezers X and Y are identical except that one has a door opening at the front and the other
has a door opening at the top.
door
freezer
freezer
door
X
Y
Both doors are the same size and are opened for the same amount of time.
Which freezer gains the least amount of thermal energy in this time and why?
freezer gaining the
least thermal energy
reason
A
X
cold air falls
B
X
warm air falls
C
Y
cold air falls
D
Y
warm air falls
14 A metal wire is loaded up to the limit of proportionality.
Which statement is correct?
A
Hooke’s law is not obeyed when the load is increased from zero to this point.
B
When the load is increased beyond the limit of proportionality, the diameter of the wire will
increase.
C
When the load is removed, the wire returns to its original length.
D
Up to the limit of proportionality, there is no change in the shape of the wire.
15 A wave of frequency 6600 Hz travels 1320 m in 4.0 s.
What is the wavelength?
A
0.050 m
B
0.80 m
C
1.3 m
D
20 m
16 The diagram shows a wave.
What are the amplitude and the wavelength of this wave?
amplitude / cm
wavelength / cm
A
3
4
B
3
8
C
6
4
D
6
8
17 A student investigates a pendulum.
He measures the time for the pendulum to complete 20 oscillations.
He repeats the experiment three more times.
The readings are shown.
experiment
time for
20 oscillations / s
1
17.6
2
19.8
3
17.6
4
18.6
What is the average period of the pendulum?
A
0.88 s
B
0.92 s
C
17.6 s
D
18.4 s
18 A tennis ball falls from the upstairs window of a house.
What can be said about the acceleration of the ball if air resistance is ignored?
A
It depends on the density of the ball.
B
It depends on the mass of the ball.
C
It increases as the ball falls.
D
It stays the same as the ball falls.
19 The gravitational field strength is 8.8 N / kg on Venus and 3.8 N / kg on Mars.
An object has a weight of 42 N on Venus.
What are the mass and the weight of the object on Mars?
mass / kg
weight / N
A
4.8
18
B
4.8
42
C
11
42
D
11
97
20 A car has a mass of 1500 kg. A constant resultant force acts on the car and the car accelerates
from 15 m / s to 20 m / s in 4.0 seconds.
What is the magnitude of the resultant force acting on the car?
A
300 N
B
1200 N
C
1900 N
D
7500 N
21 A student carries out an experiment to find the density of a rock.
measuring
cylinder
liquid
rock
200 g
balance
264 g
Which two measurements does the student need to make to determine the density of the rock?
measurement 1
measurement 2
A
increase in mass
increase in volume of liquid
B
final mass
increase in depth of liquid
C
increase in mass
increase in depth of liquid
D
final mass
increase in volume of liquid
22 The diagram shows a uniform metre rule, MN, pivoted at its midpoint P.
M
P
W1
N
W2
Two weights, W1 and W2, are hung either side of the pivot.
The rule remains balanced.
Which row is correct?
direction of resultant
moment about point M
direction of resultant
force on the rule
A
clockwise
downwards
B
clockwise
zero
C
zero
downwards
D
zero
zero
23 A resultant force of 500 N acts for 10 s on a car of mass 1000 kg. This causes the velocity of the
car to double. What is the final velocity of the car?
A
5m/s
B
10 m / s
C
20 m / s
D
50 m / s
24 At time = 0, a cannonball is stationary inside a cannon. The cannonball is then fired from the
cannon.
At time = t, the cannonball moves forwards and the cannon moves backwards.
What happens to the total kinetic energy and the total momentum of the cannon and the
cannonball between time = 0 and time = t ?
total kinetic energy of
cannon and cannonball
total momentum of
cannon and cannonball
A
changes
changes
B
changes
remains the same
C
remains the same
changes
D
remains the same
remains the same
25 In a small hydroelectric power scheme, 800 kg of water drops through a vertical height of 2.2 m
every second. The electrical output is 10.6 kW.
What is the efficiency of the scheme?
A
0.60%
B
17%
C
60%
D
75 %
26 In a small hydroelectric power scheme, 800 kg of water drops through a vertical height of 2.2 m
every second. The electrical output is 10.6 kW.
What is the efficiency of the scheme?
A
0.60%
B
17%
C
60%
D
75 %
27 Ether is a liquid that evaporates easily at room temperature.
The rate at which ether evaporates can be increased by bubbling air through it.
The diagram shows this process.
air
air bubbles
ether
Students give three suggestions why the rate of evaporation increases when air is bubbled
through.
Student 1 suggests that the temperature of the ether is decreased.
Student 2 suggests that the surface area of the ether is increased.
Student 3 suggests that evaporated molecules are removed at a greater rate.
Which students are correct?
A
1 and 2
B
1 and 3
C
2 and 3
D
3 only
28 At time = 0, a cannonball is stationary inside a cannon. The cannonball is then fired from the
cannon.
At time = t, the cannonball moves forwards and the cannon moves backwards.
What happens to the total kinetic energy and the total momentum of the cannon and the
cannonball between time = 0 and time = t ?
total kinetic energy of
cannon and cannonball
total momentum of
cannon and cannonball
A
changes
changes
B
changes
remains the same
C
remains the same
changes
D
remains the same
remains the same
29 Some ice is slowly heated and its temperature is measured. A graph is plotted of temperature
against time.
100
temperature / C
X
0
–10
time
Which row describes what happens to the thermal energy and to the temperature in section X?
thermal energy
temperature of ice
A
gained by ice
rises
B
gained by ice
stays the same
C
not gained by ice
rises
D
not gained by ice
stays the same
30 The diagram shows the apparatus needed for an experiment to determine the specific heat
capacity of the material from which an object is made.
thermometer
A
heater
object
V
stop-clock
balance
Which piece of apparatus could be omitted if the purpose of the experiment is to determine the
thermal capacity of the object?
A
ammeter
B
balance
C
stop-clock
D
thermometer
Section B – Theory (50 marks)
1. Fig. 2.1 shows two railway trucks on a track.
Truck A of mass 6000 kg is moving at 5.0 m / s. It is approaching truck B of mass 5000 kg, which
is stationary.
(a) Calculate the momentum of truck A.
momentum = ................................................................. [2]
(b) The trucks collide, their buffers compress and then they bounce off each other, remaining
undamaged. After the collision, truck B has a momentum of 27 000 kg m / s.
(i) Determine the impulse applied to truck B.
impulse = ................................................................. [2]
(ii) The trucks are in contact for 0.60 s. Calculate the average force on truck B.
force = ................................................................. [2]
(iii) Calculate the final speed of truck A.
speed = ................................................................. [3]
[Total :9]
2. A child releasing a balloon filled with helium.
The pressure of the helium in the balloon keeps the balloon inflated.
(a) Explain how the particles of helium produce this pressure.
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
…………………………………………………………………………………………………………[3]
(b) As the balloon travels upwards through the atmosphere, the volume o f the helium increases.
The temperature of the helium remains constant.
(i)
State an equation that relates the volume of the helium to its pressure.
……………………………………………………………………………………………….[1]
(ii)
Fig. 6.2 shows how the air pressure in the atmosphere changes with the height above
ground level
1. Using Fig. 6.2, determine the pressure at ground level. Give the unit.
pressure = ............................................ unit = ......................... [2]
2. Using Fig. 6.2, determine the height at which the volume of the helium in the balloon
is twice the volume at ground level.
height = ...........................................................[2]
[ Total : 8]
3. A loudspeaker is built into the side of a swimming pool. The loudspeaker produces sound waves
in the water of wavelength 0.25 m.
(a) (i) The frequency of the sound waves is 6.0 kHz. Calculate the speed of the sound waves in
water.
speed of sound waves in water = ...........................................................[2]
(ii)State a typical value for the speed of sound in air.
speed of sound in air = ...........................................................[1]
(iii)State and explain, for the sound produced by the loudspeaker, how the wavelength of
the sound in air compares with the wavelength of the sound in water.
....................................................................................................................................................
........ .......................................................................................................................................[1]
(b) Sound is a longitudinal wave.
Explain what is meant by a longitudinal wave.
...................................................................................................................................................
...................................................................................................................................................
...............................................................................................................................................[2]
(c) Some animals use a echo technique to collect information about their surroundings.
Describe how this technique provides information about the surroundings.
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
………………………………………………………………………………………………………..[3]
[Total :9]
4. A footballer and a referee are discussing a puddle of water that has formed on the pitch. The
footballer wears a white shirt whilst the referee wears a black shirt which, apart from its colour, is
identical.
Fig. 5.1 shows the two men looking at the puddle. puddle white shirt black shirt Fig. 5.1
The weather is bright and sunny.
(a) State and explain how the temperature of the white shirt differs from the temperature of the
black shirt
...................................................................................................................................................
...............................................................................................................................................[2]
(b) The volume of water in the puddle is slowly decreasing.
(i) Describe how two changes in the weather conditions could affect the rate at which the
puddle dries.
change 1 ....................................................................................................................................
effect .........................................................................................................................................
..................................................................................................................................................
change 2 ...................................................................................................................................
effect .........................................................................................................................................
............................................................................................................................................... [2]
(ii)Explain, in terms of the water molecules, what happens as the puddle dries
..............................................................................................................................................
..........................................................................................................................................[2]
[Total: 6]
5. Fig. 4.1 shows a cold plastic spoon that has just been placed in hot liquid in a cup. plastic spoon
hot liquid .
(a) Describe, in terms of molecules, why the temperature of the whole of the spoon increases.
………………………………………………………………………………………………………………
…................................................................................................................................................ [3]
(b) The plastic spoon is replaced by a metal spoon. Describe an additional process by which the
temperature of the whole of this spoon increases.
...................................................................................................................................................
.............................................................................................................................................. [2]
(c) The cup contains 150g of liquid of specific heat capacity 4.2J/(g°C). When the cold spoon is
placed into the hot liquid, the temperature of the liquid decreases from 80°C to 56°C. Calculate
the loss of thermal energy from the liquid.
energy loss = ......................................................... [3]
[Total: 8]
6. Fig. 2.1 shows a uniform plank AB of length 2.0 m suspended from two ropes X and Y.
The weight W of the plank is 210 N. The force in rope X is P. The force in rope Y is Q.
(a) State, in terms of P, the moment of force P about B.
...............................................................................................................................................[1]
(b) Calculate:
(i)
the moment of W about B
moment = ...........................................................[1]
(ii)
the force P
force P = ...........................................................[2]
(iii)
the force Q.
force Q = ...........................................................[2]
[Total: 6]
7. Fig. 2.2 shows two forces acting on an object.
Draw a scale diagram to determine the resultant force acting on the object. State the scale you
use.
scale ..............................................................
magnitude of resultant force = ...........................................................
direction of resultant relative to the direction of the 20 N force =…………………………………..[4]
[Total: 4]
Section C – Alternative To Practical (Mark :20)
1. The IGCSE class is investigating the cooling of water.
Fig. 2.1. shows the apparatus used.
Hot water is poured into the beaker and temperature readings are taken as the water cools.
Table 2.1 shows the readings taken by one student.
T1 = …………………………. [2]
T2 = ………………………………….[2]
[Total :11]
2. A student investigates insulators
[9]