Physics > Edexcel > Pearson Edexcel International GCSE In Physics (4PH1) Paper 2PR..Mark Scheme (Results) January 2022 (All)

Pearson Edexcel International GCSE In Physics (4PH1) Paper 2PR..Mark Scheme (Results) January 2022

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Question number Answer Notes Marks 1 (a) (i) each tick correctly placed in each row;;;; more than one tick in a row negates the mark 4 (ii) petrol generator; 1 (b) any two from: ignore statemen... ts relating to cost 2 MP1. idea of noise pollution; ignore bald ‘pollution’ MP2. idea of visual pollution; ignore bald ‘pollution’ MP3. idea that turbine only generates electricity when the wind blows; MP4. difficult for output to match demand; ignore ‘do not generate much electricity/energy’ MP5. wind is a dilute source of energy; allow idea that wind farms take up a lot of space MP6. can cause harm to migrating flocks of birds; Total for Question 1 = 7 marks https://britishstudentroom-b430a.web.app/Question number Answer Notes Marks 2 (a) (i) substitution into F = (mv – mu)/t; 3 evaluation; -1 if POT error correct direction; independent mark 208.3… scores 2 marks max. if given with correct direction e.g. (F =) (6.7 - −4.2) / 0.012 (F =) 910 (N) allow 908.3…(N) (direction =) right allow forwards ignore compass directions 0.9083… scores 1 mark (ii) same forces as in (a)(i) AND opposite direction; allow ECF from (a)(i) for both points 1 allow ECF for compass direction only if opposite to direction given in (i) e.g. (F =) 910 (N) AND (direction =) left (b) any three from: 3 MP1. idea that there is a change of momentum (when ball hits player); MP2. (equipment) increases (impact) time; MP3. decreases rate of change of momentum (of ball); MP4. decreases force (on player); MP5. decreases pressure (on player); allow spreads force over larger area [Show More]

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