Cambridge A Level Physics 9702 — 2004 Oct/Nov Paper 1 · Variant 1

Question 1

1 Which line of the table gives values that are equal to a time of 1 ps (one picosecond) and a distance of 1 Gm (one gigametre)? time of 1 ps distance of 1 Gm A 10–9 s 109 m B 10–9 s 1012 m C 10–12 s 109 m D 10–12 s 1012 m

Accepted Answer

C

Question 2

2 Which of the following definitions is correct and uses only quantities rather than units? A Density is mass per cubic metre. B Potential difference is energy per unit current. C Pressure is force per unit area. D Speed is distance travelled per second.

Accepted Answer

C

Question 3

3 When a beam of light is incident on a surface, it delivers energy to the surface. The intensity of the beam is defined as the energy delivered per unit area per unit time. What is the unit of intensity, expressed in SI base units? A kg m–2 s–1 B kg m2 s–3 C kg s–2 D kg s–3

Accepted Answer

D

Question 4

4 The deflection of the needle of an ammeter varies with the current passing through the ammeter as shown in the graph. deflection of the ammeter needle 0 0 current Which diagram could represent the appearance of the scale of this meter? A B 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 1 8 0 9 C D 2 3 45 6 7 3 4 5 6 1 8 0 1 2 7 8 9 0 9

Accepted Answer

A

Question 5

5 When a 12 V 50 Hz supply is connected to the Y-terminals of an oscilloscope, the trace in the diagram is obtained. 1 cm 1 cm What is the setting of the time-base control? A 2.0 ms cm–1 B 2.5 ms cm–1 C 5 ms cm–1 D 20 ms cm–1

Accepted Answer

B

Question 6

6 Four students each made a series of measurements of the acceleration of free fall g. The table shows the results obtained. Which student obtained a set of results that could be described as precise but not accurate? student results, g / m s–2 A 9.81 9.79 9.84 9.83 B 9.81 10.12 9.89 8.94 C 9.45 9.21 8.99 8.76 D 8.45 8.46 8.50 8.41

Accepted Answer

D

Question 7

7 In the absence of air resistance, a stone is thrown from P and follows a parabolic path in which the highest point reached is T. The stone reaches point Q just before landing. T Q P The vertical component of acceleration of the stone is A zero at T. B greatest at T. C greatest at Q. D the same at Q as at T.

Accepted Answer

D

Question 8

8 When a car driver sees a hazard ahead, she applies the brakes as soon as she can and brings the car to rest. The graph shows how the speed v of the car varies with time t after the hazard is seen. v 0 0 t1 t2 t Which graph represents the variation with time t of the distance s travelled by the car after the hazard has been seen? A B s s 0 0 0 t1 t2 t 0 t1 t2 t C D s s 0 0 0 t1 t2 t 0 t1 t2 t

Accepted Answer

C

Question 9

9 An object falls 10.0 m from rest before entering some water. Assuming negligible air resistance, what is the time taken to reach the water and the speed with which the object reaches the water? time / ms speed / m s–1 A 1.02 10.0 B 1.02 14.0 C 1.43 10.0 D 1.43 14.0

Accepted Answer

D

Question 10

10 A constant mass undergoes uniform acceleration. Which of the following is a correct statement about the resultant force acting on the mass? A It increases uniformly with respect to time. B It is constant but not zero. C It is proportional to the displacement from a fixed point. D It is proportional to the velocity.

Accepted Answer

B

Question 11

11 A particle of mass m strikes a vertical rigid wall perpendicularly from the left with velocity v. v rigid wall m If the collision is perfectly elastic, the total change in momentum of the particle that occurs as a result of the collision is A 2mv to the right. B 2mv to the left. C mv to the right. D mv to the left.

Accepted Answer

B

Question 12

12 Which two vector diagrams represent forces in equilibrium? P Q R S A P and Q B Q and R C R and S D S and P

Accepted Answer

C

Question 13

13 A long uniform beam is pivoted at one end. A force of 300 N is applied to hold the beam horizontally. 0.5 m 2.5 m beam pivot 300 N What is the weight of the beam? A 300 N B 480 N C 600 N D 960 N

Accepted Answer

B

Question 14

14 An electron is situated in a uniform electric field, as shown in the diagram. electron field What is the direction of the electric force acting on the electron? A downwards B to the left C to the right D upwards

Accepted Answer

B

Question 15

15 The kinetic energy of a particle is increased by a factor of 4. By what factor does its speed increase? A 2 B 4 C 8 D 16

Accepted Answer

A

Question 16

16 A horizontal force of 90 N is used to push a box across a horizontal floor. The frictional force on the box is 50 N. What is the gain in kinetic energy of the box when it is moved through a distance of 6.0 m? A 240 J B 300 J C 540 J D 840 J

Accepted Answer

A

Question 17

17 A cyclist is capable of generating an average power of 3.0 kW during a 4.0 km speed trial. His aerodynamic suit and position on the cycle reduce resistive forces to 180 N. What is the approximate time achieved in the speed trial? A 140 s B 240 s C 1300 s D 2200 s

Accepted Answer

B

Question 18

18 A constant force of 9.0 kN, parallel to an inclined plane, moves a body of weight 20 kN through a distance of 40 m along the plane at constant speed. The body gains 12 m in height, as shown. 40 m 9.0 kN 12 m 20 kN How much of the work done is dissipated as heat? A 120 kJ B 240 kJ C 360 kJ D 600 kJ

Accepted Answer

A

Question 19

19 Which statement applies to the boiling but not to the evaporation of a liquid? A All the bonds between molecules in the liquid are broken. B At normal atmospheric pressure, the process occurs at one temperature only. C Energy must be provided for the process to happen. D The separation of the molecules increases greatly.

Accepted Answer

B

Question 20

20 The diagram shows two liquids, labelled P and Q, which do not mix. The liquids are in equilibrium in an open U-tube. 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 21

21 Which two substances are normally both crystalline? A copper and diamond B copper and glass C diamond and glass D diamond and rubber

Accepted Answer

A

Question 22

22 The table shows a load applied to four wires and the cross-sectional area of each. Which of the wires is subjected to the greatest stress? cross-sectional load / N area / mm2 A 1500 0.25 B 2000 1.0 C 3000 0.56 D 5000 2.3

Accepted Answer

A

Question 23

23 The force F required to extend a sample of rubber by a distance x is found to vary as shown. F / N 40 30 20 10 0 0 1 2 3 4 5 x / m The energy stored in the rubber for an extension of 5 m is A less than 100 J. B 100 J. C between 100  J and 200 J. D more than 200 J.

Accepted Answer

A

Question 24

24 Which of the following is a longitudinal wave? A a light wave travelling through air B a radio wave from a broadcasting station C a ripple on the surface of water D a sound wave travelling through air

Accepted Answer

D

Question 25

25 A stationary sound wave is set up along the line joining two loudspeakers. Which measurement is sufficient on its own to enable you to deduce the wavelength of the wave? A the amplitude of the sound wave B the distance between the two loudspeakers C the distance between two adjacent antinodes D the frequency of the sound wave

Accepted Answer

C

Question 26

26 A wave of amplitude 20 mm has intensity IX. Another wave of the same frequency but of amplitude 5 mm has intensity IY. I ? What is X I Y A 2 B 4 C 16 D 256

Accepted Answer

C

Question 27

27 The diagram represents a stationary wave on a stretched string. x P What is represented by point P and by the length x? point P length x A antinode one wavelength B antinode two wavelengths C node one wavelength D node two wavelengths

Accepted Answer

C

Question 28

28 Fringes of separation y are observed on a screen 1.00 m from a Young’s slit arrangement that is illuminated by yellow light of wavelength 600 nm. At which distance from the slits would fringes of the same separation y be observed when using blue light of wavelength 400 nm? A 0.33 m B 0.67 m C 0.75 m D 1.50 m

Accepted Answer

D

Question 29

29 Two parallel, conducting plates with air between them are placed close to one another. The top plate is given a negative charge and the bottom one is earthed. Which diagram best represents the distribution of charges and the field in this situation? A B _ _ _ _ _ _ _ _ _ _ _ _ _ _ + + + + + + + C D _ _ _ _ _ _ _ _ _ _ _ _ _ _ + + + + + + +

Accepted Answer

A

Question 30

30 In a uniform electric field, which statement is correct? A All charged particles experience the same force. B All charged particles move with the same velocity. C All electric field lines are directed towards positive charges. D All electric field lines are parallel.

Accepted Answer

D

Question 31

31 Which of the following describes the electric potential difference between two points in a wire that carries a current? A the force required to move a unit positive charge between the points B the ratio of the energy dissipated between the points to the current C the ratio of the power dissipated between the points to the current D the ratio of the power dissipated between the points to the charge moved

Accepted Answer

C

Question 32

32 The diagram shows four heaters and the current in each. Which heater has the greatest power dissipation? 2 Ω 8 A A 4 Ω 6 A B 6 Ω 4 A C 8 Ω 2 A D

Accepted Answer

B

Question 33

33 When a potential difference V is applied between the ends of a wire of diameter d and length l , the current in the wire is I. What is the current when a potential difference of 2V is applied between the ends of a wire of the same material of diameter 2d and the length 2l ? Assume that the temperature of the wire remains constant. A I B 2I C 4I D 8I

Accepted Answer

C

Question 34

34 The resistance of a thermistor decreases significantly as its temperature increases. The thermistor is kept in air. The air is at room temperature. Which graph best represents the way in which the current I in the thermistor depends upon the potential difference V across it? A B C D I I I I 00 00 00 00 V V V V

Accepted Answer

C

Question 35

35 The diagram shows a junction in a circuit where three wires P, Q and R meet. The currents in P and Q are 1 A and 3 A respectively, in the directions shown. Q 3 A 1 A P R How many coulombs of charge pass a given point in wire R in 5 seconds? A 0.4 B 0.8 C 2 D 10

Accepted Answer

D

Question 36

36 The diagram shows a potential divider circuit designed to provide a variable output p.d. 5.0 kΩ 9.0 V 5.0 kΩ output Which gives the available range of output p.d? maximum output minimum output A 3.0 V 0 B 4.5 V 0 C 9.0 V 0 D 9.0 V 4.5 V

Accepted Answer

B

Question 37

37 In the circuit shown, the ammeters have negligible resistance and the voltmeters have infinite resistance. I1 3 Ω I2 2 Ω A A 6 Ω 2 Ω V V V1 V2 The readings on the meters are I1, I2, V1 and V2, as labelled on the diagram. Which is correct? A I1 > I2 and V1 > V2 B I1 > I2 and V1 < V2 C I1 < I2 and V1 > V2 D I1 < I2 and V1 < V2

Accepted Answer

A

Question 38

38 The symbol 77 Ge represents a nuclide of germanium that decays to a nuclide of arsenic (As) 32 by emitting a β-particle. What is the symbol of this arsenic nuclide? A 76 As B 78 As C 78 As D 77 As 32 32 31 33

Accepted Answer

D

Question 39

39 The table shows three properties of different types of ionising radiation. X Y Z charge 0 –1 e +2 e 1 mass 0 u 4 u 1840 speed c ~0.9 c ~0.1 c What are the radiations X, Y and Z? X Y Z A alpha beta X-rays B gamma alpha beta C gamma beta alpha D X-rays alpha beta

Accepted Answer

C

Question 40

40 Which conclusion can be drawn from the results of the experiment showing the scattering of α-particles by gold foil? A Electrons orbit the atomic nucleus in well-defined paths. B Nuclei of different isotopes contain different numbers of neutrons. C The atomic nucleus contains protons and neutrons. D The nucleus is very small compared with the size of the atom.

Accepted Answer

D

Question paper20 pages

Mark scheme4 pages

Questions as text

Q1 · Which line of the table gives values that are equal to a time of 1 ps (one picosecond)…

Q2 · Which of the following definitions is correct and uses only quantities rather than units?

Q3 · When a beam of light is incident on a surface, it delivers energy to the surface

Q4 · The deflection of the needle of an ammeter varies with the current passing through the…

Q5 · When a 12 V 50 Hz supply is connected to the Y-terminals of an oscilloscope, the trace in…

Q6 · Four students each made a series of measurements of the acceleration of free fall g

Q7 · In the absence of air resistance, a stone is thrown from P and follows a parabolic path…

Q8 · When a car driver sees a hazard ahead, she applies the brakes as soon as she can and…

Q9 · An object falls 10.0 m from rest before entering some water

Q10 · A constant mass undergoes uniform acceleration

Q11 · A particle of mass m strikes a vertical rigid wall perpendicularly from the left with…

Q12 · Which two vector diagrams represent forces in equilibrium?

Q13 · A long uniform beam is pivoted at one end

Q14 · An electron is situated in a uniform electric field, as shown in the diagram

Q15 · The kinetic energy of a particle is increased by a factor of 4

Q16 · A horizontal force of 90 N is used to push a box across a horizontal floor

Q17 · A cyclist is capable of generating an average power of 3.0 kW during a 4.0 km speed trial

Q18 · A constant force of 9.0 kN, parallel to an inclined plane, moves a body of weight 20 kN…

Q19 · Which statement applies to the boiling but not to the evaporation of a liquid?

Q20 · The diagram shows two liquids, labelled P and Q, which do not mix

Q21 · Which two substances are normally both crystalline?

Q22 · The table shows a load applied to four wires and the cross-sectional area of each

Q23 · The force F required to extend a sample of rubber by a distance x is found to vary as…

Q24 · Which of the following is a longitudinal wave?

Q25 · A stationary sound wave is set up along the line joining two loudspeakers

Q26 · A wave of amplitude 20 mm has intensity IX

Q27 · The diagram represents a stationary wave on a stretched string

Q28 · Fringes of separation y are observed on a screen 1.00 m from a Young’s slit arrangement…

Q29 · Two parallel, conducting plates with air between them are placed close to one another

Q30 · In a uniform electric field, which statement is correct?

Q31 · Which of the following describes the electric potential difference between two points in…

Q32 · The diagram shows four heaters and the current in each

Q33 · When a potential difference V is applied between the ends of a wire of diameter d and…

Q34 · The resistance of a thermistor decreases significantly as its temperature increases

Q35 · The diagram shows a junction in a circuit where three wires P, Q and R meet

Q36 · The diagram shows a potential divider circuit designed to provide a variable output p.d

Q37 · In the circuit shown, the ammeters have negligible resistance and the voltmeters have…

Q38 · The symbol 77 Ge represents a nuclide of germanium that decays to a nuclide of arsenic…

Q39 · The table shows three properties of different types of ionising radiation

Q40 · Which conclusion can be drawn from the results of the experiment showing the scattering…

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