A-LevelPhysicsWork, energy and powerOct/Nov 2022Paper 1 Q171 Mark
A motor is used to lift a load vertically upwards. The load has weight W. The motor produces useful power output P. The load is lifted at constant velocity v. Which expression gives the time taken for the motor to lift the load vertically upwards through a distance d?
AP/(Wd)
BWv/P
CWd/P
DPv/W
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of work, energy and power within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
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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