CAIE
A Level
9702
Physics 2023 · May/June
38 Questions
Q&A Available
Questions & Model Answers 38 Qs
Q1
MCQ
1 mark
A stone sinks in water. What is a possible value for the density of the stone? kg m kg m N m N m Which unit is the largest and which unit is the smallest? largest unit smallest unit B Gm pm D Tm pm
A
stone sinks in water.
B
Gm pm
D
Tm pm
Q3
Short Answer
1 mark
Two measurements for a solid sphere are shown. mass = (32.5 ± 0.1) diameter = (1.87 ± 0.04) These values are used to determine the density of the sphere. What is the percentage uncertainty in the density? A 2.4% B 4.6% C 6.1% D 6.7%
Q4
Short Answer
1 mark
An aircraft travels along a horizontal path. Two of the forces that act horizontally on the aircraft are the thrust force of the engines and the force due to the wind. The vector diagram for these forces is shown. thrust force of the engines force due to the wind Which vector represents the resultant horizontal force acting on the aircraft due to these two forces? ABCD
Q5
MCQ
1 mark
A ball travels from point X to point Y around a semicircular track of radius 1.0 m, as shown. 1.0 m ball north south eastwest What is the displacement of the ball from X to Y? A 2.0 B 2.0 m due south C 3.1 D 3.1 m due south
A
ball travels from point X to point Y around a semicircular track of radius 1.0
A
2.0
B
2.0
C
3.1
D
3.1
Q6
MCQ
1 mark
A rock is launched vertically upwards from the surface of the Earth and an identical rock is launched vertically upwards from the surface of Mars. Each rock is launched with an initial velocity of 12m s Each rock then reaches its maximum height above the surface before returning back down to the surface. The velocity-time graph for each rock is shown. In both cases, air resistance is negligible. velocitym s-10-15 0 2.0 4.0 6.0 8.0 time/ s Earth Mars What is the difference in the maximum heights of the two rocks? A 12 m B 15 m C 19 m D 24 m
A
rock is launched vertically upwards from the surface of the Earth and an identical rock is
A
12
Q7
MCQ
1 mark
Which statement describes the mass of an object? A the force the object experiences due to gravity B the momentum of the object before a collision C the resistance of the object to changes in motion D the weight of the object as measured by a balance
A
the force the object experiences due to gravity
B
the momentum of the object before a collision
C
the resistance of the object to changes in motion
D
the weight of the object as measured by a balance
Q8
MCQ
1 mark
A submarine of total mass 3200 kg is at rest underwater. water surface sea bed submarine at rest The total mass of the submarine is suddenly decreased by 200 kg by pumping water out of the submarine horizontally in a negligible time. The upthrust acting on the submarine is unchanged. The change in the total weight of the submarine causes it to accelerate vertically upwards. What is the initial upwards acceleration of the submarine? A 0.613m s B 0.654 m s C 9.81 m s D 10.5 m s
A
submarine of total mass 3200 kg is at rest underwater.
A
0.613m s
B
0.654 m s
C
9.81 m s
D
10.5 m s
Q9
MCQ
1 mark
A box in air slides with increasing speed down a rough slope from point P to point Q. box The slope surface exerts a constant frictional force on the box. As the box moves from P to Q, there are changes to the magnitudes of its acceleration and the total resistive force acting on it. Which row describes the changes? magnitude of acceleration magnitude of total resistive force A increases decreases B decreases decreases C increases increases D decreases increases
A
box in air slides with increasing speed down a rough slope from point P to point Q.
A
increases decreases
B
decreases decreases
C
increases increases
D
decreases increases
Q10
Short Answer
1 mark
Two balls, X and Y, approach each other along the same straight line and collide. The collision is perfectly elastic. Their initial speeds are u X and u Y respectively. After the collision they move apart with speeds v X and v Y respectively. Their directions are shown. before afterX v Which equation is correct?A u X + uY = vX + vYB u X + uY = vX - vYC u X - uY = vX + vYD u X - uY = vX - vY
Q11
MCQ
1 mark
A rod is pivoted at point O. A force F is applied to the rod at point W, as shown. rod What is the moment of the force F about O?
A
rod is pivoted at point O.
A
force F is applied to the rod at point W, as shown.
Q12
MCQ
1 mark
A uniform rod XY of weight 10.0 N is freely hinged to a wall at X. It is held horizontal by a force F wallX Y 10.0 N What is the value of F A 5.0 N B 8.7 N C 10 N D 20 N
A
uniform rod XY of weight 10.0 N is freely hinged to a wall at X. It is held horizontal by a force F
A
5.0
Q13
Short Answer
1 mark
Two solid cubes X and Y are made of material of the same density. Cube X has twice the mass of cube Y. Cube X has sides of length x. Cube Y has sides of length y. What is the ratio A 1.26 B 1.41 C 2.00 D 8.00
Q14
MCQ
1 mark
A U-shaped glass tube contains liquid of density 2000 kg m , as shown. P liquid, density 2000 kg m 6.0 cm 10.0 tube What is the difference in pressure due to the liquid between levels P and Q? A 780 Pa B 1200 Pa C 1600 Pa D 2000 Pa
A
U-shaped glass tube contains liquid of density 2000
A
780
Q15
Short Answer
1 mark
A steam turbine is used to drive a generator. The input power to the turbine is P I and the output power is P O. The power loss in the turbine is P L, as shown. input power P turbine output power P power loss P generator What is the efficiency of the turbine?
Q16
Short Answer
1 mark
A variable force is applied to ensure that a constant power is supplied to a train. Which graph best shows the variation of the force F applied with the velocity v of the train?
Q17
Short Answer
1 mark
A block is released from rest and slides a distance x down a straight slope. The slope is at an angle slope block The slope is frictionless and air resistance is negligible. The acceleration of free fall is g. Which expression gives the final speed of the block?sin
Q18
MCQ
1 mark
What is meant by the spring constant of a spring? A extension per unit force D force per unit extension
A
extension per unit force
D
force per unit extension
Q19
MCQ
1 mark
A child holds a thin metal wire that is attached to a kite. The graph shows how the extension of the wire varies with its tension. 0 0.15 0.30 0.45 extension / mm tension/ N kite wire A gust of wind increases the tension from 100 N to 150 N. What is the change in the elastic potential energy of the wire caused by the gust of wind? A 3.8 mJ B 19 mJ C 34 mJ D 38 mJ
A
child holds a thin metal wire that is attached to a kite. The graph shows how the extension of
A
gust of wind increases the tension from 100
A
3.8
Q20
Short Answer
1 mark
A microphone detects a sound wave. The microphone is connected to a cathode-ray oscilloscope
Q20(cro)
MCQ
1 mark
The shape of the trace on the screen of the CRO is shown. Which property of the sound wave can be determined by using only the measurement of a horizontal distance on the screen and the value of a control setting of the CRO? A amplitude B frequency C speed D wavelength
A
amplitude
B
frequency
C
speed
D
wavelength
Q21
Short Answer
1 mark
A longitudinal wave is travelling from left to right. The graph shows the variation of the displacement of the particles with distance along the wave at one instant in time. Displacements to the right are positive; displacements to the left are negative. Which labelled point represents a compression? displacement distance
Q22
MCQ
1 mark
A source X emits a sound wave of constant frequency f. The wave is subsequently received at a stationary detector Y. The frequency of the wave that is detected by Y is less than f. What could be the reason for this? A Between X and Y, the wave undergoes diffraction. B Between X and Y, the wave undergoes reflection. C X is moving away from Y. D X is moving towards Y.
A
source X emits a sound wave of constant frequency f.
A
Between X and Y, the wave undergoes diffraction.
B
Between X and Y, the wave undergoes reflection.
C
X is moving away from Y.
D
X is moving towards Y.
Q23
Short Answer
1 mark
A beam of visible light is in a vacuum. What could be the frequency of the light?
Q24
MCQ
1 mark
A vertically polarised beam of light of intensity I 0 is incident normally on a polarising filter. filter is then incident normally on a second filter. The transmission axis of the second filter is horizontal. vertically polarised light transmission axis of first filter transmission axis of second filter What is the intensity of the beam of light after transmission through the second filter? A 0 B I0 C I0 D I 0
A
vertically polarised beam of light of intensity I 0 is incident normally on a polarising filter.
A
0 B
Q25
MCQ
1 mark
A stationary wave is formed by two progressive waves travelling in opposite directions along the same line of travel. Which statement about the two progressive waves is not correct? A They must have a constant phase difference. B They must have the same frequency. C They must have the same wavelength. D They must travel at the same speed.
A
stationary wave is formed by two progressive waves travelling in opposite directions along the
A
They must have a constant phase difference.
B
They must have the same frequency.
C
They must have the same wavelength.
D
They must travel at the same speed.
Q26
MCQ
1 mark
The sound from a loudspeaker placed above a tube causes resonance of the air in the tube. A stationary wave is formed with two nodes and two antinodes, as shown. loudspeaker 60 cm The tube has height 60cm. The speed of sound in the air is 340m s What is the frequency of the sound? A 430 Hz B 570 Hz C 850 Hz D 1700 Hz
A
stationary wave is formed with two nodes and two antinodes, as shown.
A
430
Q27
MCQ
1 mark
A continuous progressive water wave in a ripple tank passes through a gap in a barrier and diffracts. The width of the gap is greater than the wavelength of the wave. Which change causes the wave to spread over a larger angle as it passes through the gap? A a small decrease in the wavelength of the wave B a small decrease in the width of the gap C a small increase in the frequency of the wave D a small increase in the height of the barrier
A
continuous progressive water wave in a ripple tank passes through a gap in a barrier and
A
a small decrease in the wavelength of the wave
B
a small decrease in the width of the gap
C
a small increase in the frequency of the wave
D
a small increase in the height of the barrier
Q28
Short Answer
1 mark
The diagram shows a view from above of a double-slit interference demonstration. L is a monochromatic light source with a vertical filament. B is a barrier with two narrow vertical slits and S is a screen upon which interference fringes form. NOT TO SCALE The intensity is I at the point on the screen where the centre of the fringe pattern forms. When one of the slits is covered, what is the intensity at the same point on the screen?
Q29
Short Answer
1 mark
Green light of wavelength 550 nm is incident normally on a diffraction grating and produces a diffraction pattern on a screen placed 3.5 m from the diffraction grating. The third-order maximum on the screen is a distance of 0.75 m from the zeroth-order (central) maximum. screen 3.5 m 0.75 green light diffraction grating maximum (central) maximum NOT TO SCALE What is the distance between two adjacent slits in the diffraction grating?
Q30
Short Answer
1 mark
Which charge can be carried by a charge carrier?-19-19-19-19
Q31
MCQ
1 mark
A resistor of resistance R is connected across a cell of electromotive force (e.m.f.) E and negligible internal resistance. Which single change to the circuit would lead to the largest increase in the power dissipated in the resistor? A doubling the value of E B doubling the value of R C halving the value of E D halving the value of R
A
resistor of resistance R is connected across a cell of electromotive force (e.m.f.) E and
A
doubling the value of E
B
doubling the value of R
C
halving the value of E
D
halving the value of R
Q32
Short Answer
1 mark
An electrical cable is made up of one thick strand of copper wire that is surrounded by eight thin strands of copper wire. All nine strands of wire are connected in parallel with each other. A cross-section of the cable is shown. thin strand, area A thick strand, area 4A Each thin strand of wire has cross-sectional area A and length L. The thick strand of wire has cross-sectional area 4A and length L. The cable has total resistance R. Which expression gives the resistivity of copper?A12AR4 AR12
Q33
MCQ
1 mark
A car has sensors for detecting the light intensity and temperature of its environment. The sensors make use of a light-dependent resistor (LDR) and a thermistor. The car moves from a warm and dark environment into a cold and bright environment. What are the changes to the resistances of the LDR and thermistor? resistance of LDR resistance of thermistor A increases increases B increases decreases C decreases increases D decreases decreases
A
car has sensors for detecting the light intensity and temperature of its environment.
A
increases increases
B
increases decreases
C
decreases increases
D
decreases decreases
Q34
MCQ
1 mark
A student assembles the circuit shown. lamp 1 lamp 2 Which row describes the state of the two lamps? lamp 1 lamp 2 A off off B on off C off on D on on
A
student assembles the circuit shown.
A
off off
B
on off
C
off on
D
on on
Q35
MCQ
1 mark
Kirchhoff's first law is a consequence of the conservation of which quantity? A charge B energy C momentum D potential difference
A
charge
B
energy
C
momentum
D
potential difference
Q36
Short Answer
1 mark
Three identical cells each have electromotive force (e.m.f.) E and negligible internal resistance. The cells are connected to three identical resistors, each of resistance R, as shown. What is the potential difference across one of the resistors? A 0 BD E
Q37
MCQ
1 mark
In the potentiometer circuit shown, the reading on the ammeter is zero. sliding contact uniform metal wire power supply The light-dependent resistor (LDR) is then covered and the ammeter gives a non-zero reading. Which change could return the ammeter reading to zero? A decreasing the supply voltage B increasing the supply voltage C moving the sliding contact to the left D moving the sliding contact to the right
A
decreasing the supply voltage
B
increasing the supply voltage
C
moving the sliding contact to the left
D
moving the sliding contact to the right
Q38
MCQ
1 mark
What are isotopes? A nuclei of different elements with the same number of neutrons B nuclei of different elements with the same number of nucleons C nuclei of the same element with different numbers of neutrons D nuclei of the same element with different numbers of protons 39 A neutron is fired at a U nucleus. The neutron is absorbed by the nucleus which then splits to form nuclei of and Kr. What is the number of free neutrons emitted when the nucleus splits? A 0 B 1 C 2 D 3 meson has a charge of +e, where e is the elementary charge. It consists of an up quark and one other quark. meson? A anti-down B anti-up C bottom D charm Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series. Local Examinations Syndicate (UCLES), which is a department of the University of Cambridge.
A
nuclei of different elements with the same number of neutrons
B
nuclei of different elements with the same number of nucleons
C
nuclei of the same element with different numbers of neutrons
D
nuclei of the same element with different numbers of protons
A
0 B 1 C 2 D 3
A
anti-down
B
anti-up
C
bottom
D
charm
Paper Details
| Board | CAIE |
| Level | A Level |
| Subject | Physics |
| Code | 9702 |
| Year | 2023 |
| Session | May/June |
| Q&A | 38 questions |
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