Cambridge A Level Physics 9702 — 2024 Oct/Nov Paper 1 · Variant 3

Question 1

1 Which statement about physical quantities is correct? A A physical quantity does not always have a magnitude or a unit. B A physical quantity must always have a magnitude but does not always have a unit. C A physical quantity must always have a unit but does not always have a magnitude. D A physical quantity must always have a magnitude and a unit.

Accepted Answer

D

Question 2

2 What is a reasonable estimate of the mass of a solid sphere of copper that has a diameter of 60 cm? A 0.1 kg B 10 kg C 1000 kg D 100 000 kg

Accepted Answer

C

Question 3

3 The power output P of a star can be modelled with the equation P = AT 4 where  is a constant, A is the surface area of the star and T is the surface temperature of the star. What are the SI base units of ? A kg s–2 K–4 B kg s–3 K–4 C kg m–1 s–2 K–4 D kg m–1 s–3 K–4

Accepted Answer

B

Question 4

4 A boy throws a stone with a horizontal velocity of 10 m s–1 from the top of a building. The height of the building is 8.0 m. The stone travels along a curved path until it hits the horizontal ground, as shown. 10 m s–1 building 8.0 m ground Air resistance is negligible. How long does it take the stone to reach the ground? A 0.61 s B 0.80 s C 1.3 s D 1.6 s

Accepted Answer

C

Question 5

5 Four cuboids with identical lengths, breadths and heights are immersed in water. The cuboids are
held at the same depth and in identical orientations by vertical rods, as shown.

Water has density p.

Cuboid W is made of material of density 4.
Cuboid X is made of material of density 2:.
Cuboid Y is made of material of density p.
Cuboid Z is made of material of density 0.5:.

Which statement is correct?

A

B
Cc
D

The upthrust of the water on each of the cuboids is the same.
The upthrust of the water on W is twice the upthrust of the water on X.
The upthrust of the water on X is twice the upthrust of the water on W.

The upthrust of the water on Y is zero.

Accepted Answer

A

Question 6

6 In which example is it not possible for the underlined object to be in equilibrium? A An aeroplane climbs at a steady rate. B An aeroplane tows a glider at a constant altitude. C A speedboat changes direction at a constant speed. D Two boats tow a ship into harbour.

Accepted Answer

C

Question 7

7 Two identical balls are projected vertically upwards from ground level with the same initial velocity. Ball X is in a vacuum and ball Y is in air. Which statement about the motion of the balls is correct? A Ball X reaches a greater maximum height and in a longer time than ball Y. B Ball X reaches a greater maximum height and in a shorter time than ball Y. C Ball Y reaches a greater maximum height and in a longer time than ball X. D Ball Y reaches a greater maximum height and in a shorter time than ball X.

Accepted Answer

A

Question 8

8 The graph shows the variation of velocity with time for a stone that falls from a bridge into a lake and sinks to the bottom of the lake. velocity 0 0 time What can be deduced about the motion of the stone? A Terminal velocity was reached in air. B The acceleration in air was decreasing with increasing time. C The distance travelled in water was greater than the distance travelled in air. D The rate of change of velocity in air was constant.

Accepted Answer

B

Question 9

9 The graph shows the variation of the momentum p with time t for a car. 4 p / 104 kg m s–1 1 0 0 20 50 60 t / s What is the resultant force on the car at t = 10 s? A 0 B 1500 N C 2000 N D 4000 N

Accepted Answer

B

Question 10

10 Two objects X and Y form an isolated system. X and Y collide and then separate. The mass of X is greater than the mass of Y. Which statement about the collision is correct? A The change of momentum of Y is greater than the change of momentum of X. B The force on Y is greater than the force on X. C The forces that X and Y exert on each other act for the same length of time. D The forces that X and Y exert on each other are gravitational forces only.

Accepted Answer

C

Question 11

11 Which row states whether total momentum and total kinetic energy are conserved in an inelastic collision in which there are no external forces? total momentum total kinetic energy A conserved conserved B conserved not conserved C not conserved conserved D not conserved not conserved

Accepted Answer

B

Question 12

12 A tennis ball is thrown vertically upwards. The tennis ball reaches its highest point and then falls back down to the point from which it was thrown. Air resistance is significant. At which position on the path of the tennis ball is the resultant force on the tennis ball greatest? A at the start just after the tennis ball is released B when the tennis ball is halfway to its highest point on the way up C when the tennis ball is at its highest point D when the tennis ball is halfway from its highest point on the way down

Accepted Answer

A

Question 13

13 Which statement correctly describes a couple? A A couple is a pair of forces that act in the same direction. B A couple is a pair of forces that act on the centre of gravity of an object. C A couple is a pair of forces that act to produce a resultant force. D A couple is a pair of forces that act to produce rotation only.

Accepted Answer

D

Question 14

14 A uniform beam of mass 1.4 kg is pivoted at P, as shown. The beam has a length of 0.60 m and P is a distance of 0.20 m from one end. Loads of 3.0 kg and 6.0 kg are suspended at distances of 0.35 m and 0.15 m from the pivot, as shown. 0.40 m 0.20 m 0.35 m 0.15 m 3.0 kg P 6.0 kg centre of beam of mass 1.4 kg What is the torque that must be applied to the beam in order to maintain it in equilibrium? A 0.010 N m B 0.10 N m C 0.29 N m D 2.8 N m

Accepted Answer

D

Question 15

15 The diagrams show three rigid objects P, Q and R being subjected to different combinations of
forces.

10N

20N

A
B
Cc

P and Q
PandR
QandR

none of them

LL

Which objects are in equilibrium?

80N

60N

Q

80N

60N

30° 30°
50N \b\! 14 50N

100N

Accepted Answer

D

Question 16

16 The diagram shows two liquids, labelled P and Q, that do not mix. The liquids are in equilibrium in an open U-tube. Three equal distances x are labelled. P x x Q x density of P What is the ratio ? density of Q 1 2 3 A B C D 2 2 3 2

Accepted Answer

A

Question 17

17 A stone of mass 0.30 kg is thrown vertically downwards with a speed of 20 m s–1 from a height of 12 m above the ground. It falls vertically until it hits the ground. Air resistance is negligible. What is the kinetic energy of the stone just before it hits the ground? A 25 J B 35 J C 60 J D 95 J

Accepted Answer

D

Question 18

18 A student can run or walk up the stairs to her classroom. Which statement describes the power required and the gravitational potential energy gained while running up the stairs compared to walking up them? A Running provides more gravitational potential energy and uses more power. B Running provides more gravitational potential energy and uses the same power. C Running provides the same gravitational potential energy and uses more power. D Running provides the same gravitational potential energy and uses the same power.

Accepted Answer

C

Question 19

19 A weight W hangs from a trolley that runs along a rail. The trolley moves horizontally through a distance p and simultaneously raises the weight through a height q. trolley rail Y r q X weight W p As a result, the weight moves through a distance r  from X to Y. It starts and finishes at rest. How much work is done on the weight during this process? A Wp B W(p + q) C Wq D Wr

Accepted Answer

C

Question 20

20 The equation for kinetic energy EK can be derived using the equations of motion. Four equations relating to motion are listed. 1 W = Fs 2 F = ma 3 v 2 = u 2 + 2as W 4 P = t Which three equations can be used to derive the equation for EK? A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

Accepted Answer

A

Question 21

21 The force–extension graph of a metal wire is shown. At which point on the graph does the metal wire stop obeying Hooke’s law? force D C B A 0 0 extension

Accepted Answer

A

Question 22

22 A uniform wire is made of a metal that has a Young modulus of 1.3  1011 Pa. The wire is 2.4 m long and has a spring constant of 2.7  104 N m–1. What is the volume of the wire? A 2.6  10–8 m3 B 6.3  10–8 m3 C 5.0  10–7 m3 D 1.2  10–6 m3

Accepted Answer

D

Question 23

23 A rubber cord hangs from a rigid support. A weight attached to its lower end is gradually increased from zero, and then gradually reduced to zero. force stretching rubber cord contraction weight 0 0 extension The force–extension curve for contraction is below the force–extension curve for stretching. What does the shaded area between the curves represent? A the elastic potential energy stored in the rubber cord B the thermal energy dissipated in the rubber cord C the work done by the rubber cord during contraction D the work done on the rubber cord during stretching

Accepted Answer

B

Question 24

24 A source of sound waves of constant frequency is travelling as shown. In which situation would the stationary observer detect a sound with the lowest frequency? A B observer source observer source 5 m s–1 10 m s–1 C D observer source observer source 5 m s–1 10 m s–1

Accepted Answer

D

Question 25

25 Each of the principal radiations of the electromagnetic spectrum has a range of wavelengths. Which wavelength is correctly linked to its radiation? wavelength / m radiation A 10–9 gamma ray B 10–5 microwave C 10–8 ultraviolet D 10–14 X-ray

Accepted Answer

C

Question 26

26 A transverse water wave has a frequency of 15 Hz, a wavelength of 0.12 m and an amplitude of 4.0 mm. P is a water particle that is initially at the peak of the wave, as shown. P What is the total vertical distance travelled by P in a time of 0.5 s? A 30 mm B 60 mm C 120 mm D 900 mm

Accepted Answer

C

Question 27

27 A wave is formed on a string. A student plots a graph of the variation of displacement d with time t for a point on the string. The student marks two points, X and Y, on the graph. d 0 0 X Y t Which property of the wave is represented by the distance along the horizontal axis between X and Y? A amplitude B frequency C period D wavelength

Accepted Answer

C

Question 28

28 A stationary wave is set up in a stretched string. Which distance is equal to the wavelength of the wave? A double the distance between adjacent antinodes B half the distance between adjacent nodes C the distance between adjacent antinodes D the distance between a node and an adjacent antinode

Accepted Answer

A

Question 29

29 A source of coherent light is incident on two slits, P and Q, which are placed 80 mm apart. The light has a single frequency of 1.5  1012 Hz. The light from the slits meets on a screen that is a distance of 4.0 m from the slits. The screen is parallel to a line joining the slits. 4.0 m screen P intensity sensor 80 mm Q not to scale An intensity sensor is placed on the screen at the midpoint of the interference pattern such that the intensity reading is a maximum. The intensity sensor is moved along the screen. The sensor travels through two intensity minima, two intensity maxima and stops in the middle of the third intensity minimum. Which distance does the sensor move through? A 4.0 mm B 10 mm C 25 mm D 50 mm

Accepted Answer

C

Question 30

30 A vibrating bar produces surface water waves in a ripple tank. The wavelength of the waves is 5.0 cm and they pass through a gap of width 20 cm. 5.0 cm ripple tank 20 cm vibrating shallow water bar barrier with gap Which change will increase the amount of diffraction that is observed? A decreasing the distance between the bar and the gap B decreasing the frequency of the wave C increasing the amplitude of the wave D increasing the width of the gap

Accepted Answer

B

Question 31

31 What is an electric current? A a flow of charge carriers B a flow of energy C an electron D the charge on a particle

Accepted Answer

A

Question 32

32 A wire of diameter d is connected into an electric circuit. There is a current I in the wire and the charge carriers have an average drift speed v. The wire is replaced with a new wire of the same material but with a diameter 0.5d. The current is adjusted so that the charge carriers in the new wire have an average drift speed 3v. What is the current in the new wire? A 0.75I B 1.5I C 6I D 12I

Accepted Answer

A

Question 33

33 A fixed resistor and a diode are combined by connecting them in series. The total potential difference V across the combination is varied and the corresponding current I is measured. Which graph could represent the variation of I with V ? A B I I 0 0 0 V 0 V C D I I 0 0 0 V 0 V

Accepted Answer

A

Question 34

34 The potential difference (p.d.) across a fixed resistor is V. The power dissipated in the resistor is 5.0 W. The p.d. across the resistor then changes to a new value. With the new p.d. the energy transferred to the resistor in a time of 2.25 s is 45.0 J. What is the new p.d. across the resistor? 1 A V B 2V C 3V D 4V 2

Accepted Answer

B

Question 35

35 The diagram shows part of a circuit that uses a potentiometer wire to measure a potential difference (p.d.) in an external circuit. E I1 L1 Y X Z L2 I2 P Q The potentiometer wire XZ has length L1. It is connected to a cell of known electromotive force (e.m.f.) E that has negligible internal resistance. Terminals P and Q are connected to the external p.d. to be measured. The length of the potentiometer wire between points X and Y is L2. The ratio of the lengths L1 and L2 is used to determine the p.d. between P and Q in terms of E. Which condition must be met in order to determine this p.d.? A The current I1 must be zero. B The current I2 must be zero. C The p.d. across YZ must be zero. D The resistance of the external circuit must be zero.

Accepted Answer

B

Question 36

36 The diagram shows a circuit. V Which statement about the circuit is not correct? A Electromotive force is the energy transferred per unit charge. B Energy is transferred from chemical potential energy in the cell to other forms when the switch is closed. C The electromotive force of the cell is greater than the terminal potential difference when the switch is closed. D When the switch is open, the voltmeter measures the electromotive force of the cell.

Accepted Answer

D

Question 37

37 A circuit contains a battery of electromotive force E and internal resistance r connected to two
resistors each of resistance 2.50.

The resistors are connected in parallel as shown.

The current in one of the resistors is 0.80A.

Which expression, where E is in volts and ris in ohms, gives the internal resistance r?

E-4.0 B E-4.0 Cc E-2.0 D E-2.0
1.6 0.80 1.6 0.80

A

Accepted Answer

C

Question 38

38 What is the rest mass of a beta-particle? A 0 B 9.11  10–31 kg C 1.66  10–27 kg D 1.67  10–27 kg

Accepted Answer

B

Question 39

39 What is the name of the group (class) of particles containing mesons, and the name of the group (class) of particles containing baryons? group (class) of group (class) of particles containing particles containing mesons baryons A hadrons hadrons B hadrons leptons C leptons hadrons D leptons leptons

Accepted Answer

A

Question 40

40 A magnesium nucleus 23 Mg decays by emitting two particles. 12 The resulting nucleus is sodium 23 Na. 11 Which two particles are emitted? A -particle, antineutrino B + particle, antineutrino C – particle, neutrino D + particle, neutrino

Accepted Answer

D

Question paper16 pages

Mark scheme3 pages

Questions as text

Q1 · Which statement about physical quantities is correct?

Q2 · What is a reasonable estimate of the mass of a solid sphere of copper that has a diameter…

Q3 · The power output P of a star can be modelled with the equation P = AT 4 where  is a…

Q4 · A boy throws a stone with a horizontal velocity of 10 m s–1 from the top of a building

Q5 · Four cuboids with identical lengths, breadths and heights are immersed in water

Q6 · In which example is it not possible for the underlined object to be in equilibrium?

Q7 · Two identical balls are projected vertically upwards from ground level with the same…

Q8 · The graph shows the variation of velocity with time for a stone that falls from a bridge…

Q9 · The graph shows the variation of the momentum p with time t for a car

Q10 · Two objects X and Y form an isolated system

Q11 · Which row states whether total momentum and total kinetic energy are conserved in an…

Q12 · A tennis ball is thrown vertically upwards

Q13 · Which statement correctly describes a couple?

Q14 · A uniform beam of mass 1.4 kg is pivoted at P, as shown

Q15 · The diagrams show three rigid objects P, Q and R being subjected to different…

Q16 · The diagram shows two liquids, labelled P and Q, that do not mix

Q17 · A stone of mass 0.30 kg is thrown vertically downwards with a speed of 20 m s–1 from a…

Q18 · A student can run or walk up the stairs to her classroom

Q19 · A weight W hangs from a trolley that runs along a rail

Q20 · The equation for kinetic energy EK can be derived using the equations of motion

Q21 · The force–extension graph of a metal wire is shown

Q22 · A uniform wire is made of a metal that has a Young modulus of 1.3  1011 Pa

Q23 · A rubber cord hangs from a rigid support

Q24 · A source of sound waves of constant frequency is travelling as shown

Q25 · Each of the principal radiations of the electromagnetic spectrum has a range of…

Q26 · A transverse water wave has a frequency of 15 Hz, a wavelength of 0.12 m and an amplitude…

Q27 · A wave is formed on a string

Q28 · A stationary wave is set up in a stretched string

Q29 · A source of coherent light is incident on two slits, P and Q, which are placed 80 mm apart

Q30 · A vibrating bar produces surface water waves in a ripple tank

Q31 · What is an electric current?

Q32 · A wire of diameter d is connected into an electric circuit

Q33 · A fixed resistor and a diode are combined by connecting them in series

Q34 · The potential difference (p.d.) across a fixed resistor is V

Q35 · The diagram shows part of a circuit that uses a potentiometer wire to measure a potential…

Q36 · The diagram shows a circuit

Q37 · A circuit contains a battery of electromotive force E and internal resistance r connected…

Q38 · What is the rest mass of a beta-particle?

Q39 · What is the name of the group (class) of particles containing mesons, and the name of the…

Q40 · A magnesium nucleus 23 Mg decays by emitting two particles

What was in this paper

What you needed in this session

Other variants, same session

This paper, other years