AQA PHYA4 2 QP JUN13

AQA PHYA4 2 QP JUN12

AQA PHYA4 2 QP JUN12
... WMP/Jun 12 /PHYA4/ 2 12 There are no questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED Copyright © 20 12 AQA and its licensors All rights reserved ( 12) WMP/Jun 12 /PHYA4/ 2 ... (2 marks) 12 (08) WMP/Jun 12 /PHYA4/ 2 Do not write outside the box (a) Define the gravitational potential at a point ... of the graph balance reading 0 sand starts to land 10 15 20 25 30 time / s sand stops landing (3 marks) Turn over (03) ᮣ WMP/Jun 12 /PHYA4/ 2 Do not write outside the box (a) Figure shows an electron...
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AQA PHYA4 2 w QP JAN10

AQA PHYA4 2 w QP JAN10
... (2 marks) END OF QUESTIONS (10) 16 WMP /Jan10 /PHYA4/ 2 11 There are no questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED (11) WMP /Jan10 /PHYA4/ 2 12 There ... Calculate the power wasted in the internal circuits when the TV set is left in standby mode answer = W (1 mark) Question continues on the next page Turn over ᮣ (09) WMP /Jan10 /PHYA4/ 2 10 (b) Areas ... questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED Copyright © 20 10 AQA and its licensors All rights reserved ( 12) WMP /Jan10 /PHYA4/ 2 ...
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AQA PHYA4 /2 w QP JAN11

AQA PHYA4 /2 w QP JAN11
... Do not write outside the box There are no questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED (02) WMP /Jan11 /PHYA4/ 2 Do not write outside the box Answer all ... determine the value of θ answer = degrees (3 marks) Turn over (09) ᮣ WMP /Jan11 /PHYA4/ 2 10 Do not write outside the box Figure shows a horizontal wire, held in tension between fixed points at P ... length of the wire Show that the maximum force on the wire is about 40 mN when there is an alternating current of rms value 2.4 A in it (3 marks) (10) WMP /Jan11 /PHYA4/ 2 Do not write outside the...
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AQA PHYA4 2 w QP JAN12

AQA PHYA4 2 w QP JAN12
... (2 marks) 13 END OF QUESTIONS (11) WMP/Jan 12 /PHYA4/ 2 12 There are no questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED Copyright © 20 12 AQA and its ... answer = s (2 marks) (b) (ii) Use your answers from parts (a) and (b)(i) to show that the amplitude A, which is the distance from Q to R, is about 25 m (3 marks) Turn over (07) ᮣ WMP/Jan 12 /PHYA4/ 2 ... on your graph current / mA 0 60 time / ms (2 marks) Turn over (05) ᮣ WMP/Jan 12 /PHYA4/ 2 11 Do not write outside the box The two diagrams in Figure show a student before and after she makes a bungee...
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Vật lý A level: AQA PHYA4 2 w QP JUN10

Vật lý A level: AQA PHYA4 2 w QP JUN10
... Calculate the gravitational force between the spheres when their surfaces were in contact answer = N (2 marks) ( 02) WMP /Jun10 /PHYA4/ 2 Do not write outside the box (c) Modifications, such as ... (2 marks) (b) In 1798 Cavendish investigated Newton’s law by measuring the gravitational force between two unequal uniform lead spheres The radius of the larger sphere was 100 mm and that of ... giving an appropriate unit answer = (2 marks) (c) (iii) How many times does the electron travel around the circle in one minute? answer = (2 marks) Turn over (09) ᮣ WMP /Jun10 /PHYA4/ 2 Do...
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Vật lý A level: AQA PHYA4 2 w QP JUN11

Vật lý A level: AQA PHYA4 2 w QP JUN11
... (1 mark) ( 02) WMP /Jun11 /PHYA4/ 2 Do not write outside the box (a) (iii) Calculate R if m = 12 kg, r = 23 m, and v = 11 m s–1 answer = N (2 marks) (b) Explain what would happen to the magnitude ... mark) 12 (06) WMP /Jun11 /PHYA4/ 2 Do not write outside the box Capacitors and rechargeable batteries are examples of electrical devices that can be used repeatedly to store energy (a) (i) A capacitor ... ᮣ WMP /Jun11 /PHYA4/ 2 11 Do not write outside the box 10 (a) Long cables are used to send electrical power from a supply point to a factory some distance away, as shown in Figure An input power...
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Vật lý A level:AQA PHYA4 1 QP JUN12

Vật lý A level:AQA PHYA4 1 QP JUN12
... a radius of 1. 5 × 10 8 km What is the Earth’s approximate speed? A B 5.0 × 10 3 m s 1 C 1. 0 × 10 4 m s 1 D 1. 5 × 10 3 m s 1 3.0 × 10 4 m s 1 A particle moves in a circular path at constant speed Which ... at P A 10 00 μF capacitor and a 10 μF capacitor are charged so that they store the same energy The pd across the 10 00 μF capacitor is V1 and the pd across the other capacitor is V2 ( ) V1 What is ... surface of a planet of radius 2R and mass 2M? A B W –– C W D 13 W –– 2W The gravitational field strength on the surface of a planet orbiting a star is 8.0 N kg 1 If the planet and star have a similar...
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Vật lý A level: AQA PHYA4 1 w QP JAN10

Vật lý A level: AQA PHYA4 1 w QP JAN10
... conserved WMP /Jan10 /PHYA4/ 1 What is the angular speed of a point on the Earth’s equator? A B C D 7.3 × 10 –5 rad s 1 4.2 × 10 –3 rad s 1 2.6 × 10 1 rad s 1 15 rad s 1 Which one of the following does ... END OF QUESTIONS WMP /Jan10 /PHYA4/ 1 10 There are no questions printed on this page WMP /Jan10 /PHYA4/ 1 11 There are no questions printed on this page WMP /Jan10 /PHYA4/ 1 12 There are no questions ... capacitor The reciprocal of the gradient equals the capacitance of the capacitor 19 An initially uncharged capacitor of capacitance 10 µF is charged by a constant current of 200 A After what...
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AQA PHYA4 1 w QP JAN12

AQA PHYA4 1 w QP JAN12
... uniform magnetic field What is the mass of the wire? A B 3 .1 × 10 –3 kg C 3.0 × 10 –2 kg D (08) 8.0 × 10 –4 kg 8.2 × 10 1 kg WMP /Jan12 /PHYA4/ 1 Do not write outside the box 21 When a β particle moves ... increases by 50%? A 13 .0 V B 14 .5 V C 19 .0 V D 12 .0 V Turn over (07) ᮣ WMP /Jan12 /PHYA4/ 1 Do not write outside the box 18 The graph shows the results of an experiment which was carried out to investigate ... the box What is the angular speed of a car wheel of diameter 0.400 m when the speed of the car is 10 8 km h 1? A B 15 0 rad s 1 C 270 rad s 1 D 17 5 rad s 1 540 rad s 1 Which one of the following statements...
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AQA PHYA4 1 w QP JUN10

AQA PHYA4 1 w QP JUN10
... of the body when its displacement is 0.70 m? A B C D 0 .11 m s 1 0.22 m s 1 0.40 m s 1 0.80 m s 1 Turn over for the next question Turn over ᮣ WMP /Jun10 /PHYA4/ 1 Which graph, A to D, shows the variation ... of force? A ATm B W s–2 C kg m s–2 D J m 1 WMP /Jun10 /PHYA4/ 1 11 23 The graph shows how the magnetic flux passing through a loop of wire changes with time magnetic flux time What feature of the ... recharged? A B C D 10 s 10 0 s 200 s 10 00 s Turn over ᮣ WMP /Jun10 /PHYA4/ 1 17 When switch S in the circuit is closed, the capacitor C is charged by the battery to a pd V0 The switch is then opened...
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AQA PHYA4 1 w QP JUN11

AQA PHYA4 1 w QP JUN11
... END OF QUESTIONS (10 ) WMP/Jun 11 /PHYA4/ 1 11 There are no questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED (11 ) WMP/Jun 11 /PHYA4/ 1 12 There are no questions ... after 1. 0 s? A 2.5 m s 1 B 5.0 m s 1 C 7.5 m s 1 D 10 m s 1 (02) Which of the following is a possible unit for rate of change of momentum? A Ns B N s 1 C kg m s 1 D kg m s–2 WMP/Jun 11 /PHYA4/ 1 Do ... 20 30 t/ms 10 20 30 t/ms 10 20 30 t/ms – -10 ε/V B 10-10 ε/V C 20 – -20 ε/V D 20 – -20 Turn over (09) ᮣ WMP/Jun 11 /PHYA4/ 1 Do not write outside the box 10 25 Which one of the following is not...
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Vật lý A level: AQA PHYA5 2 a w QP JUN10

Vật lý A level: AQA PHYA5 2 a w QP JUN10
... chromatic aberration Draw a diagram to show how a single converging lens produces chromatic aberration (2 marks) Turn over for the next question Turn over (03) ᮣ WMP /Jun10 /PHYA5/ 2A Do not write ... (2 marks) ( 02) WMP /Jun10 /PHYA5/ 2A Do not write outside the box (b) (ii) The Triesnecker Crater on the Moon has a diameter of 23 km Calculate the angle subtended by the image of this crater when ... output of Sirius A power output of Sirius B ratio = (2 marks) (04) WMP /Jun10 /PHYA5/ 2A Do not write outside the box (b) (ii) Show that data in the table suggests that one star is about 8000 times...
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Vật lý A level: AQA PHYA5 2 b w QP JUN10

Vật lý A level: AQA PHYA5 2 b w QP JUN10
... image of a < /b> real object by a < /b> diverging lens object F F (2 < /b> marks) (b) Define the power of a < /b> lens (1 mark) ( 02)< /b> WMP /Jun10 /PHYA5/< /b> 2B Do not write ... (3 marks) (04) WMP /Jun10 /PHYA5/< /b> 2B Do not write outside the box (c) The scale on the intensity meter is changed to the dBA scale and the new reading, for the same sound, is found to be 50 dBA Explain ... (7 marks) (06) WMP /Jun10 /PHYA5/< /b> 2B 10 Do not write outside the box (a)< /b> Outline the basic principles of a < /b> magnetic resonance (MR) scanner used to scan a < /b> patient’s brain ...
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Vật lý A level: AQA PHYA5 2 c w QP JUN10

Vật lý A level: AQA PHYA5 2 c w QP JUN10
... describe the process that occurs during each of the parts A to B, B to C, C to D and D to A of the cycle Describe whether heating or cooling is taking place, the type of process and whether work ... (iii) Calculate the new rotational kinetic energy of the roundabout and children answer = J (1 mark) (c) Explain where the increase of rotational kinetic energy of the roundabout and children ... children about the axis of rotation Give your answer to an appropriate number of significant figures answer = kg m2 (3 marks) (a) (ii) Calculate the total rotational kinetic energy of the roundabout...
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Vật lý A level: AQA PHYA5 2 d w QP JUN10

Vật lý A level: AQA PHYA5 2 d w QP JUN10
... PROVIDED (11) WMP /Jun10 /PHYA5/ 2D Do not write outside the box 12 There are no questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED Copyright © 20 10 AQA and its ... mark) (b) A beam of identical particles moving at a speed of 0.98c is directed along a straight line between two detectors 25 m apart Figure first detector second detector beam of particles 25 ... WMP /Jun10 /PHYA5/ 2D Do not write outside the box When light of wavelength 590 nm is directed at an uncharged surface of a certain metal X, electrons are emitted from the metal surface causing a photoelectric...
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