Physics Unit 2 Revision (Higher tier)

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Question 3Question 4Question 5(a) (i) tiredness / boredomdrugsalcoholdistractionany two for 1 mark each2(ii)A greater / longerB no effectC greater / longereach for 1 mark 3(b)on a wet road: there is less friction / gripfor 1 markbraking distance is greater / takes longer to stop or car skids / slides forwardfor 1 mark
(c) (i) deceleration = gradient or 30 / 4.8each for 1 mark(ii) force = mass × acceleration or 900 × 6.25each for 1 mark22(iii)distance = area under graph or0.5 × 4.8 × 30 or average speed × time or 15 × 4.8Question 6Accept answer in terms of change in k.e. = work doneif incorrect unit given (eg 72km) then no markeach for 1 mark2[13](a) gravity accept weightdo not accept massaccept gravitational pull 1(b) (i) Initially force L greater than force Maccept there is a resultant force downwards(as speed increases) force M increasesaccept the resultant force decreaseswhen M = L, (speed is constant)accept resultant force is 0accept gravity/weighty for Laccept drag/ upthrust/resistance/friction for Mdo not accept air resistance for M but penalise onlyonce111(ii) terminal velocity 1(iii) 0.15accept an answer between 0.14 – 0.16an answer of 0.1 gains no creditallow 1 mark for showing correct use of the graph2 [7]
Page 1 and 2: Physics Unit 2 Revision (Higher tie
Page 3 and 4: Sample Question 2
Page 5 and 6: there is a downwards slope then the
Page 7 and 8: Cars and braking forcesHow quickly
Page 9 and 10: (c)A car was travelling at 30 m/s.
Page 11 and 12: (b)The distance - time graph repres
Page 13 and 14: For example: In the sample graph th
Page 15 and 16: Force and energyWhen a force acts u
Page 17 and 18: In all situations, momentum is cons
Page 21 and 22: Sample Question 10A pupil did an ex
Page 23 and 24: Current (symbol I, measured in ampe
Page 25 and 26: Sample Question 11Sample Question 1
Page 27 and 28: Mains electricity and safetyIn circ
Page 29 and 30: To know what rating of fuse to use
Page 31 and 32: The existing power sockets in the h
Page 35 and 36: Atoms and their propertiesIn the ea
Page 37 and 38: ++++++++++++++Gamma decay (γ) is w
Page 39 and 40: days the radiation will fallen by h
Page 41 and 42: Sample question 17
Page 47 and 48: Life cycle of starsPlanets form whe
Page 49 and 50: (c) Explain how, and when, atoms of
Page 51: SOLUTIONS TO EXAM QUESTIONQuestion
Page 55 and 56: Question 9Question 10(a) (i) Ends h
Page 57 and 58: Question 13Question 14(a)50 hertz1(
Page 59 and 60: Question 16
Page 61 and 62: Question 19
Page 63 and 64: Question 21(a) (i) gases (1)gravity

Physics Unit 2 Revision (Higher tier)

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