Surname Other names

Centre Number

Candidate Number

Edexcel GCSE

Physics/Additional Science

Unit 2: Physics for Your Future Higher Tier

Thursday 24 May 2012 – Morning Time: 1 hour

You must have: Calculator, ruler

Paper Reference

5PH2H/01

Total Marks

Instructions

Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name, centre number and candidate number. Answer all questions. Answer the questions in the spaces provided – there may be more space than you need.

Information

The total mark for this paper is 60. The marks for each question are shown in brackets – use this as a guide as to how much time to spend on each question. Questions labelled with an asterisk (*) are ones where the quality of your written communication will be assessed – you should take particular care with your spelling, punctuation and grammar, as well as the clarity of expression, on these questions.

Advice

Read each question carefully before you start to answer it. Keep an eye on the time. Try to answer every question. Check your answers if you have time at the end.

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P40248A

©2012 Pearson Education Ltd.

*P40248A0120*

1/1/1/1/1/1/

FORMULAE You may find the following formulae useful charge = current × time potential difference = current × resistance electrical power = current × potential difference energy transferred = current × potential difference × time speed = distance time change in velocity time taken a= (v − u ) t Q=I×t V=I×R P=I×V E=I×V×t

acceleration =

force = mass × acceleration weight = mass × gravitational field strength momentum = mass × velocity force = change in momentum time

F=m×a W=m×g P=m×v F= (mv − mu ) t

work done = force × distance moved in the direction of the force power = work done time taken

E=F×d P= E t

gravitational potential energy = mass × gravitational field strength × vertical height GPE = m × g × h kinetic energy = ½ × mass × velocity2 KE = ½ × m × v2

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*P40248A0220*

BLANK PAGE Questions begin on next page.

*P40248A0320*

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Answer ALL questions Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then mark your new answer with a cross . Weight lifting 1 The picture shows a weight lifter.

(a) In one lift, he does 5040 J of work against gravity. (i) One lift takes 4 seconds. Complete the sentence by putting a cross ( ) in a box next to your answer. The power used to lift the weight is (1) A B 1260 W 2016 W

C 12600 W D 20160 W (ii) The weight he lifts has a mass of 240 kg. Gravitational Field Strength = 10 N/Kg The energy gained by the mass is equal to the work done when lifting it. Calculate the height he lifts this mass. (3)

height = ..................................... m

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*P40248A0420*

(b) After lifting the mass, he must hold it steady for 3 seconds. During this time, he does no work on the mass. State why he does no work on the mass in this time. (1) . . . . . . . . . . . . .................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........... ............................................................................................................................... .. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . .................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .......... ............................................................................................................................... .. . . . . . . . . . . . . . . . . . . . .

(c) After the 3 seconds, the weight lifter drops the mass. The velocity of the mass just before it hits the floor is 6.4 m/s. Calculate the momentum of the mass just before...