A-LevelPhysicsWork, energy and powerOct/Nov 2012Paper 1 Q191 Mark
A piston in a gas supply pump has an area of 500 cm² and it moves a distance of 30 cm during one stroke. The pump moves the gas against a fixed pressure of 4000 Pa. How much work is done by the piston during one stroke?
A60 J
B6.0 × 10³ J
C6.0 × 10⁵ J
D6.0 × 10⁷ J
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The correct answer is A. This question tests the candidate's understanding of work, energy and power within the Physicssyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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