2
1
3
A pendulum makes 50 complete swings in 2 min 40 s.
5
On this planet, g = 20 N / kg.
What is the time period for 1 complete swing?
A
1.6 s
B
3.2 s
C
4.8 s
A mass of 6.0 kg rests on the surface of a planet.
D
6.4 s
What is the weight of the object?
A
2
0.30 N
The diagram shows the speed v of the ball at different times t.
6
t = 0.2 s
v = 2.8 cm / s
ball
C
60 N
D
120 N
The mass of a measuring cylinder is 190 g.
The total mass of the measuring cylinder and the liquid is 560 g.
t = 0.4 s
v = 5.1 cm / s
Four solid objects are lowered in turn into the liquid. The densities of the objects are shown.
t = 0.6 s
v = 7.0 cm / s
Which statement describes the motion of the ball?
4
0.60 N
400 cm3 of liquid is put into the measuring cylinder.
t = 0s
v = 0 cm / s
3
B
A student investigates the motion of a ball rolling down a slope.
1
0.40 g / cm3
2
0.90 g / cm3
3
1.2 g / cm3
4
2.7 g / cm3
A
The acceleration is not constant.
Which objects will float in the liquid?
B
The acceleration is negative.
A
C
The speed is decreasing.
D
The velocity is constant.
7
Which statement about acceleration is correct?
A
It is related to the changing speed of an object.
B
It is the distance an object travels in one second.
C
It is the force acting on an object divided by the distance it travels in one second.
D
It is the force acting on an object when it is near to the Earth.
1 only
B
1 and 2 only
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.
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3 and 4 only
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
© UCLES 2020
D
The beam is 3.0 m in length.
It is easier to accelerate the car and easier to bring the car to rest.
B
1, 2 and 3
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.
Which statement correctly describes the effects of placing a heavy load in a car?
A
C
0.53 m
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B
1.1 m
C
1.9 m
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D
2.5 m
[Turn over
4
8
9
5
Which quantity is a vector?
11 Which energy resource does not have the Sun as the original source?
A
acceleration
A
coal
B
distance
B
geothermal
C
speed
C
hydroelectric
D
mass
D
wind
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.
12 The diagram shows a solid block resting on a bench. The dimensions of the block are shown.
40 cm
For what period of time does the force act on the object?
A
0.90 s
B
1.1 s
C
1.5 s
20 cm
D
Q
3.6 s
10 The diagram shows part of a rollercoaster ride with the car at different positions.
80 cm
P
R
bench
The car runs freely down from position X to position Y and up the hill on the other side.
car
X
On which labelled surface should the block rest to produce the smallest pressure on the bench?
A
P
B
Q
C
R
D
P, Q and R produce the same pressure
Y
What happens to the kinetic energy and to the gravitational potential energy of the car as it
moves from position X to position Y?
kinetic energy
gravitational
potential energy
A
decreases
decreases
B
decreases
increases
C
increases
decreases
D
increases
increases
13 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
14 A gas is heated in a sealed container.
The volume of the container does not change.
What happens to the molecules of the gas?
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0625/21/M/J/20
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.
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[Turn over
6
7
15 Water in a beaker evaporates when left on a bench for a period of time.
19 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.
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
door
freezer
freezer
door
surface area, temperature, volume
16 A solid is heated causing it to expand.
X
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
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?
17 The diagrams show four blocks of steel. The blocks are all drawn to the same scale.
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
The same quantity of thermal energy is given to each block.
20 A wave of frequency 6600 Hz travels 1320 m in 4.0 s.
Which block shows the greatest rise in temperature?
A
B
C
D
What is the wavelength?
A
0.050 m
B
0.80 m
C
1.3 m
D
20 m
18 Why are metals better thermal conductors than other solids?
A
Metals contain free electrons which help transfer the energy.
B
Molecules in metals are in fixed positions.
C
Molecules in metals can move freely.
D
Molecules in metals vibrate faster than those in other solids.
© UCLES 2020
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© UCLES 2020
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[Turn over
8
2
21 The diagram shows a wave.
1
Which vector diagram correctly shows the force Z as the resultant of forces X and Y?
A
8 cm
Z
X
3 cm
B
2
D
Y
Z
X
X
Y
6 cm
C
Y
Y
X
Z
Z
An object falls towards the surface of the Earth.
The object is falling at its terminal velocity.
4 cm
Which statement is correct?
What are the amplitude and the wavelength of this wave?
A
A
There is air resistance and the acceleration of the object is negative.
There is air resistance and the acceleration of the object is zero.
amplitude / cm
wavelength / cm
B
3
4
C
There is no air resistance and the acceleration of the object is negative.
D
There is no air resistance and the acceleration of the object is zero.
B
3
8
C
6
4
D
6
8
3
The graph represents the motion of a vehicle.
speed
m/s
22 Which statement is correct?
A
The speed of light in glass is equal to the speed of light in a vacuum multiplied by the
refractive index of glass.
B
The incident angle of a light ray at an air-glass surface is the angle between the ray and the
glass surface.
0
0
1
.
refractive index of glass
C
The sine of the critical angle at an air-glass surface is equal to
D
The angle of refraction for light passing through an air-glass surface is proportional to the
angle of incidence at that surface.
20
400
time / s
What is the distance travelled by the vehicle in 400 s?
A
4
20 m
B
400 m
C
4000 m
D
8000 m
On the Earth, a spring stretches by 5.0 cm when a mass of 3.0 kg is suspended from one end.
The gravitational field strength on the Moon is
1
of that on the Earth.
6
Which mass, on the Moon, would stretch the spring by the same extension?
A
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0.50 kg
© UCLES 2023
B
3.0 kg
C
5.0 kg
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D
18 kg
3
5
4
A shopkeeper pours rice into a dish that hangs from a spring balance. He records the reading.
7
A train is travelling horizontally in a straight line. A book is on a table in the train.
The diagram shows all the forces acting on the book.
0 1
6
contact force
spring balance
book
2
5
3
4
frictional
force
table
weight of book
rice
How is the train moving?
dish
6
A
accelerating to the left of the diagram
A customer buys some pasta. The shopkeeper notices that the reading on the spring balance,
with just pasta in the dish, is the same as it was with just rice in the dish.
B
accelerating to the right of the diagram
C
moving at uniform speed to the left of the diagram
Which quantity must be the same for the rice and for the pasta?
D
moving at uniform speed to the right of the diagram
A
density
B
temperature
C
volume
Which beam is not in equilibrium?
D
weight
A
8
The diagrams show four beams, each of negligible weight and freely pivoted.
B
2.0 m
A student determines the density of an irregularly shaped stone. The stone is slowly lowered into
a measuring cylinder partly filled with water.
2.0 m
1.0 m
pivot
3.0 N
2.0 m
pivot
6.0 N
6.0 N
6.0 N
measuring
cylinder
D
C
1.0 m
2.0 m
2.0 m
1.0 m
1.0 m
stone
pivot
3.0 N
Which other apparatus does the student need to calculate the density of the irregularly shaped
stone?
9
3.0 N
a balance
B
a thermometer
For which period of time does the force act on the object?
C
a metre rule
A
D
a stop-watch
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[Turn over
4.0 N
2.0 N
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 in the same direction.
A
© UCLES 2023
pivot
4.0 N
0.90 s
© UCLES 2023
B
1.1 s
C
1.5 s
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D
3.6 s
5
6
10 Which row about the change of energy in the energy store must be correct?
change of
energy in store
process
energy store
A
water pumped up to a
high-altitude dam
gravitational potential
energy of water
increases
B
water pumped up to a
high-altitude dam
kinetic energy
of water
decreases
C
air passes through
a wind turbine
gravitational potential
energy of air
increases
air passes through
a wind turbine
kinetic energy
of air
increases
D
15 Which statements about evaporation of water are correct?
A
B
1.6 m / s
C
1.8 m / s
D
3.2 m / s
12 A child runs up a set of stairs four times. The time taken for each run is recorded.
10 s
B
20 s
C
30 s
During evaporation, the more energetic particles escape from the surface of the
liquid.
3
Evaporation only happens at 100 C.
1, 2 and 3
B
1 and 2 only
C
1 and 3 only
D
2 and 3 only
D
A
by conduction then convection
B
by conduction then radiation
C
by evaporation then convection
D
by evaporation then radiation
17 The diagrams show graphs of displacement against time for four waves. All the graphs are drawn
to the same scale.
Which time is measured when the child’s useful power is greatest?
A
2
How does the thermal energy escape into space?
What is her speed?
1.3 m / s
Evaporation causes the remaining liquid to cool.
16 Some hot water is sealed inside a metal can. The can is in a vacuum in outer space. The hot
water slowly cools down.
11 A woman of mass 50 kg has 81 J of kinetic energy.
A
1
Which wave has the largest amplitude and the highest frequency?
40 s
A
B
displacement
13 A dam holds water in a reservoir. The height of the water in the reservoir is 15 m.
displacement
dam
0
water in
reservoir
B
1500 Pa
C
15 000 Pa
D
displacement
150 000 Pa
14 A student uses a microscope to observe pollen moving on the surface of water.
0
0
time
Which statement describes the reason for this movement?
Water molecules are moved by microscopic pollen particles.
B
Water molecules are moved by pollen molecules.
C
Microscopic pollen particles are moved by water molecules.
D
Pollen molecules are moved by water molecules.
© UCLES 2023
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time
D
displacement
0
A
0
C
What is the pressure due to the water at the bottom of the dam?
6.8 Pa
time
15 m
The density of water is 1000 kg / m3.
A
0
0
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© UCLES 2023
0625/21/M/J/23
0
time
PMT
PMT
10
4
11
A student investigates the time taken for water to evaporate to dryness when heated from above.
..........................................................................................................................................................
Fig. 4.1 shows the set-up. The power of the heater is constant.
..........................................................................................................................................................
The following is also available:
..........................................................................................................................................................
•
•
supply of water at room temperature
metre ruler.
..........................................................................................................................................................
..........................................................................................................................................................
infrared heater
..........................................................................................................................................................
lead to power
supply
shallow dish
..........................................................................................................................................................
..........................................................................................................................................................
water
..........................................................................................................................................................
Fig. 4.1
Plan an experiment to investigate how one factor affects the time taken for the water to evaporate.
You do not need to write about safety precautions.
You should:
•
•
•
•
•
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
state any additional apparatus required
explain briefly how you would do the investigation
state the key variables that you would keep constant
draw a table, or tables, with column headings, to show how you would display your readings
(you are not required to enter any readings in the table)
explain how you would use your readings to reach a conclusion.
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
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© UCLES 2023
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© UCLES 2023
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