A-LevelPhysicsWork, energy and powerMay/June 2021Paper 1 Q171 Mark
A constant force F, acting on a car of mass m, moves the car up a slope through a distance s at constant velocity v. The angle of the slope to the horizontal is α. [Figure 17.1] The acceleration of free fall is g. What is the ratio gravitational potential energy gained by car / work done by force F?
Amgs sinα / Fv
Bmv / Fs
Cmv² / 2Fs
Dmg sinα / F
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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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