... 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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... 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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... 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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... 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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... **(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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... 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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... **(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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... 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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... (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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... (3 marks) Turn over (05) ᮣ WMP/Jun **11 ** **/PHYA5/** ** 1 ** Do not write outside the box An electrical heater is placed in an insulated container holding ** 10** 0 g of ice at ** a ** temperature of **14** oC The heater ... energy at ** a ** rate of 98 joules per second **(a)** After an interval of 30 s, all the ice has reached ** a ** temperature of oC Calculate the specific heat capacity of ice answer = J kg **1 ** K **1 ** (2 marks) ... box ** A ** fixed mass of ideal gas at ** a ** low temperature is trapped in ** a ** container at constant pressure The gas is then heated and the volume of the container changes so that the pressure stays at ** 1.** 00...

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... problem of spherical aberration Draw ** a ** ray diagram to show how spherical aberration is caused by ** a ** concave spherical mirror (1 mark) (02) WMP **/Jun11 ** **/PHYA5/** **2A ** Do not write outside the box (b) (ii) ... the axes below draw the Hertzsprung-Russell (H-R) diagram, labelling the main sequence stars, giant stars and white dwarf stars Complete the vertical axis by labelling ** a ** suitable absolute magnitude ... ᮣ WMP **/Jun11 ** **/PHYA5/** **2A ** Do not write outside the box 10 Centaurus ** A ** is the nearest example of an active galactic nucleus Many astronomers believe ** a ** supermassive black hole at the centre of such a...

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... (2 marks) (b) ** A ** hearing test was used to obtain threshold hearing audiograms for several people The audiogram shown in Figure was obtained for ** a ** person with normal hearing On the same axes: ... (6 marks) (06) WMP **/Jun11 ** **/PHYA5/** ** 2B ** Do not write outside the box (b) Figure shows an ECG trace for ** a ** healthy person Figure R potential at body surface T P time / s (b) (i) Add ** a ** suitable scale and ... lens which will allow the person to have an aided near point 25 cm from the eye Complete the diagrams to show the passage of the rays to the retina You may assume that for the eye there is only a...

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... performance of the heat pump is 3.2 and the average electrical power input is 780 ** W ** **(a)** (i) Calculate the rate at which energy is delivered to the workshop answer = ** W ** (1 mark) **(a)** (ii) Calculate ... marks) (04) WMP **/Jun11 ** **/PHYA5/** ** 2C ** Do not write outside the box (b) ** A ** KERS flywheel has ** a ** moment of inertia of 0.036 kg m2 and rotates at its maximum angular speed of 6400 rad s–1 When the flywheel ... energy transferred from the flywheel to the car answer = J (1 mark) (b) (ii) Calculate the average power produced by the decelerating flywheel answer = ** W ** (1 mark) (b) (iii) Calculate the...

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... (b) (i) The two horizontal parallel metal plates were mm apart The mass of the –15 droplet was × 10 kg The droplet was held stationary when the plate pd was 690 V Calculate the charge of the oil ... WMP **/Jun11 ** **/PHYA5/** ** 2D ** Do not write outside the box In an experiment to measure the charge of the electron, ** a ** charged oil droplet of unknown mass was observed between two horizontal parallel metal ... marks) (06) WMP **/Jun11 ** **/PHYA5/** ** 2D ** Do not write outside the box (b) Young demonstrated that ** a ** pattern of alternate bright and dark fringes was observed when light from ** a ** narrow single slit passed through...

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