Physics 2021
Physics 2021
Physics 2021
PHYSICS 0972/11
Paper 1 Multiple Choice (Core) May/June 2021
45 minutes
INSTRUCTIONS
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 multiple choice answer sheet.
Follow the instructions on the multiple choice answer sheet.
Write in soft pencil.
Write your name, centre number and candidate number on the multiple choice answer sheet in the
spaces provided unless this has been done for you.
Do not use correction fluid.
Do not write on any bar codes.
You may use a calculator.
Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).
INFORMATION
The total mark for this paper is 40.
Each correct answer will score one mark.
Any rough working should be done on this question paper.
IB21 06_0972_11/FP
© UCLES 2021 [Turn over
2
Which property of the stone can be found by lowering it into a measuring cylinder half-filled with
water?
A length
B mass
C volume
D weight
2 Two stones of different weights fall at the same time from a table. Air resistance may be ignored.
A Both stones hit the floor at the same time. Acceleration of free fall is constant.
B Both stones hit the floor at the same time. They fall at constant speed.
C The heavier stone hits the floor first. Acceleration increases with weight.
D The heavier stone hits the floor first. Speed increases with weight.
100
90
distance / km 80
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80 90 100 110 120
time / min
A 50 km / h B 67 km / h C 70 km / h D 83 km / h
4 Diagram 1 shows a sealed plastic bottle containing a hollow glass sphere and a steel ball.
Diagram 3 shows the same bottle after it has been shaken again until the broken glass is in tiny
pieces.
sealed
plastic
bottle
hollow
glass tiny pieces
broken
steel ball sphere steel ball steel ball of broken
glass
glass
Which statement gives the correct relation between m1, m2 and m3?
7 The diagram shows a solid object on a flat surface, with two forces acting on the object.
3N 4N
A 1 N to the left
B 1 N to the right
C 7 N to the left
D 7 N to the right
8 The extension–load graph for a spring is shown. The unstretched length of the spring is 17.0 cm.
3
extension / cm
0
0 1 2 3 4
load / N
When an object is suspended from the spring, the length of the spring is 19.2 cm.
9 Which situation involves no work being done and no energy being transferred?
10 A student suggests that there are several ways of transferring energy to a small, stationary block
of iron on a smooth table. He makes the following suggestions.
1 Heat it.
2 Shine light on it.
3 Pass a current through it.
Man X tries to push box P along the floor. The box does not move because an object is in the
way.
shelf
box P man X man Y
direction
of force
object
Which man does the most work on their box, and which box gains the most energy?
A X P
B X Q
C Y P
D Y Q
The surface of the book in contact with a table has dimensions 0.10 m 0.20 m.
A
B
D
Which row shows the changes that occur to the trapped air?
average speed of
pressure of the air
molecules in the air
A decreases decreases
B decreases increases
C increases decreases
D increases increases
15 Very small pollen grains are suspended in water. A bright light shines from the side.
When looked at through a microscope, small specks of light are seen to be moving in a random,
jerky manner.
eye
microscope
bright light
pollen grains
in water
16 Why are small gaps left between the metal rails of a railway track?
A pressure
B volume
C electrical resistance
D mass
B Object Y needs less thermal energy to raise its temperature by 1 C than object Z.
C Object Y needs more thermal energy to melt it than object Z.
D Object Y needs more thermal energy to raise its temperature by 1 C than object Z.
19 Two students carry out different experiments to compare the abilities of different metals to
conduct thermal energy.
wax
melted wax strip pin
heat heat
experiment 1 experiment 2
In experiment 1, the bar is heated for one minute and the length of wax strip that melts is
measured.
In experiment 2, the bar is heated and the time taken for the pin to drop off is measured.
What happens to each of these measurements when a better conductor of thermal energy is
tested?
A decreases decreases
B decreases increases
C increases decreases
D increases increases
rope
Which type of wave is shown and which labelled arrow shows the wavelength of the wave?
A longitudinal X
B longitudinal Y
C transverse X
D transverse Y
22 The diagrams show water waves in three different situations. The arrows show the direction of
travel of the waves.
1 2 3
1 2 3
23 The diagram shows a narrow beam of light incident on a glass-air boundary. Some of the light
emerges along the surface of the glass and some is reflected back into the glass.
glass
air
A no yes
B no no
C yes no
D yes yes
The diagram shows the paths of two rays from the top of the object.
converging lens
object
25 A student is asked to give two uses of four different types of electromagnetic radiation.
26 The diagrams represent the waves produced by four sources of sound. The scales are the same
for all the diagrams.
A time
B time
C time
D time
27 Diagram 1 shows a small compass needle with its poles marked. It is not near any magnetic
materials.
Diagram 2 shows a bar magnet with its poles marked. The compass needle is placed at point P.
diagram 1 diagram 2
N
N S
S
A to the left
B to the right
C down the page
D up the page
28 Which diagram shows the pattern and direction of the magnetic field lines around a bar magnet?
A B
N S N S
C D
N S N S
30 The circuit diagram shows a cell connected to an ammeter and two resistors.
6.0 V
A
3.0 Ω 5.0 Ω
A 0.75 A B 1.3 A C 12 A D 48 A
component X component Y
A decreases decreases
B decreases increases
C increases decreases
D increases increases
diagram 1 diagram 2
33 The current in a lamp connected on its own to the mains supply is 0.60 A.
34 A solenoid is connected to a very sensitive ammeter. A rod is inserted into one end of the
solenoid. The ammeter shows that there is a small electric current in the solenoid while the rod is
moving.
solenoid
rod
35 The diagram shows a transformer. There are 460 turns on the primary coil and 24 turns on the
secondary coil. The primary voltage is 230 V.
iron core
A 2.0 V B 12 V C 48 V D 4400 V
36 A class is designing a d.c. motor. To achieve a greater turning effect, three suggestions are
made.
electron neutron
A e e
B e 0
C –e –e
D –e 0
90
38 The nuclide notation of the isotope strontium-90 is 38 Sr .
40 The graph shows the activity of a radioactive source over a period of time.
120
activity
counts / s 90
60
30
0
0 1 2 3 4 5
time / minutes
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