AQA PHA6B6X QP JUN14

Vật lý A level:AQA PHYA1 QP JAN12

Vật lý A level:AQA PHYA1 QP JAN12
... metal wire and asked to investigate how the resistance of the wire changes between a temperature of o C and 100 o C (a) (i) Draw a labelled diagram of a suitable arrangement that would enable the ... necessary for a photon to cause the ionisation of a hydrogen atom Give your answer to an appropriate number of significant figures answer Hz (4 marks) 12 (a) A student is given a piece of metal ... structure charge uud Sigma + uus strangeness baryon number +1 ud 0 (7 marks) (b) Each of the particles in the table has an antiparticle (b) (i) Give one example of a baryon particle and its corresponding...
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Vật lý A level:AQA PHYA2 QP JAN12

Vật lý A level:AQA PHYA2 QP JAN12
... resultant horizontal force is 155 kN, calculate the horizontal acceleration of the aircraft answer = m s–2 (2 marks) (b) (ii) State and explain one characteristic of the aircraft that limits ... and rider when at B Give your answer to an appropriate number of significant figures answer = J (2 marks) (04) WMP /Jan12 /PHYA2 Do not write outside the box (a) (iii) Calculate the gravitational ... J (2 marks) (f) A certain material has a Young modulus greater than copper and undergoes brittle fracture at a stress of 176 MPa On Figure draw a line showing the possible variation of stress...
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Vật lý A level:AQA PHYA2 QP JUN12

Vật lý A level:AQA PHYA2 QP JUN12
... in a distance of 35 m (b) (i) Calculate her average acceleration over this distance answer = .m s–2 (2 marks) (b) (ii) Calculate the resultant force necessary to produce this acceleration answer ... in Figure Figure parallel 15 N series 15 N A load of 15 N is attached to each arrangement (b) (i) Calculate the extension for the parallel arrangement when the load is midway between the lower ... box Answer all questions in the spaces provided (a) (i) State two vector quantities vector quantity vector quantity (a) (ii) State two scalar quantities scalar quantity...
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Vật lý A level:AQA PHYA1 w QP JAN10

Vật lý A level:AQA PHYA1 w QP JAN10
... WMP /Jan10 /PHYA1 A (a) An unstable nucleus, Z X, can decay by emitting a β– particle (a) Areas outside the box will not be scanned for marking (i) What part of the atom is the same as a β– particle? ... (1 mark) (a) (ii) Calculate the total emf of the combination of cells answer = V (1 mark) (12) WMP /Jan10 /PHYA1 13 Areas outside the box will not be scanned for marking (a) (iii) Calculate ... (a) (i) Calculate the peak voltage of the ac source answer = V (1 mark) (a) (ii) Calculate the rms voltage answer = V (1 mark) (a) (iii) Calculate the time period of the ac signal answer...
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Vật lý A level:AQA PHYA1 w QP JAN11

Vật lý A level:AQA PHYA1 w QP JAN11
... Unit PHYA1 Particles, Quantum Phenomena and Electricity Wednesday 12 January 2011 9.00 am to 10.15 am For this paper you must have: l a pencil and a ruler l a calculator l a Data and Formulae Booklet ... marked on your ability to: – use good English – organise information clearly – use specialist vocabulary where appropriate (JAN1 1PHYA10 1) WMP /Jan11 /PHYA1 PHYA1 Do not write outside the box Answer ... voltage answer = V (2 marks) (b) (ii) Calculate the average power dissipated in a lamp connected to the mains supply when the rms current is 0.26 A answer = W (1 mark) (08) WMP /Jan11/ PHYA1...
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Vật lý A level:AQA PHYA1 w QP JUN10

Vật lý A level:AQA PHYA1 w QP JUN10
... (3 marks) (08) WMP /Jun10 /PHYA1 Do not write outside the box (a) A student wishes to investigate how the resistance of a thermistor changes with temperature (a) (i) Draw a labelled diagram of a ... (c) A filament lamp has a power rating of 36 W when there is a pd across its terminals of 12 V (c) (i) Calculate the resistance of the filament when the pd across its terminals is 12 V answer ... write outside the box When a clean metal surface in a vacuum is irradiated with ultraviolet radiation of a certain frequency, electrons are emitted from the metal (a) (i) Explain why the kinetic energy...
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Vật lý A level: AQA PHYA1 vs QP JUN11

Vật lý A level: AQA PHYA1 vs QP JUN11
... this equation for alpha decay A Z X→ Y + α (2 marks) (iii) Calculate the specific charge of an alpha particle, stating an appropriate unit answer = (4 marks) (04) WMP /Jun11 /PHYA1 Do not ... The K + kaon is a strange particle Give one characteristic of a strange particle that makes it different from a particle that is not strange (1 mark) (b) (ii) ... WMP /Jun11 /PHYA1 Do not write outside the box 16 (a) (ii) The resistors W, X, Y, and Z all have the same resistance Show that your answer to part (a) (i) is consistent with the resistance of each...
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Vật lý A level:AQA PHYA2 w QP JAN10

Vật lý A level:AQA PHYA2 w QP JAN10
... answer = degrees (2 marks) (06) WMP /Jan10 /PHYA2 Areas outside the box will not be scanned for marking (c) State and explain one reason why part B of the optical fibre is made as narrow as ... WMP /Jan10 /PHYA2 12 Areas outside the box will not be scanned for marking Figure shows a cross-section through a step index optical fibre Figure Light ray in air A B A (a) (i) Name the parts A and ... velocity of zero at A and reaches a constant horizontal velocity at D as it leaves the racket The ball travels a horizontal distance of 0.68 m between D and G (a) (i) Show that the horizontal velocity...
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Vật lý A level:AQA PHYA2 w QP JAN11

Vật lý A level:AQA PHYA2 w QP JAN11
... that the time taken for the cannonball to reach the water surface after being fired from the cannon was 3.7 s Assume the air resistance was negligible (2 marks) (04) WMP /Jan11 /PHYA2 Do not write ... box Figure shows a stationary wave on a string The string is tied onto a thin metal bar at A and fixed at B A vibration generator causes the bar to oscillate at a chosen frequency clamp Figure 1.2 ... string metal bar oscillations A B Explain how a stationary wave is formed Then describe the key features of the stationary wave shown in Figure The quality of your written answer will be assessed...
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Vật lý A level:AQA PHYA2 w QP JUN10

Vật lý A level:AQA PHYA2 w QP JUN10
... Calculate the initial acceleration down the slope answer = m s-2 (2 marks) (c) In this experiment, the following data was obtained A graph of the data is shown below it time / pendulum swings ... front tyre at A State your answer to an appropriate number of significant figures answer = N (4 marks) (d) Calculate the vertical force that the road exerts on the rear tyre at B answer = ... investigation, the number of swings of a pendulum was used to time a trolley after it was released from rest A block was positioned to mark the distance that the trolley had travelled after a chosen...
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Vật lý A level:AQA PHYA2 w QP JUN11

Vật lý A level:AQA PHYA2 w QP JUN11
... average acceleration of the train answer = ms–2 (2 marks) (a) (ii) Calculate the average tension in the cable as the train is accelerated, stating an appropriate unit answer = (3 marks) ... to be taken and explain how they are used to find the wavelength of the light Discuss any necessary safety precautions and how you would arrange the apparatus to improve accuracy The quality of ... obtain his interference pattern screen candle (2 marks) (d) State two differences in the appearance of the pattern obtained with a laser and that produced by a white light source such as a candle...
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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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