AQA MFP2 p QP JUN15

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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