A-LevelPhysicsWork, energy and powerOct/Nov 2009Paper 1 Q141 Mark
Two trolleys are placed together on a horizontal runway with a compressed spring between them. [Figure 14.1] When they are released, the 2 kg trolley moves to the left at 2 m s⁻¹. How much energy was stored in the spring?
A4 J
B6 J
C8 J
D12 J
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The correct answer is D. 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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