A-LevelPhysicsWork, energy and powerOct/Nov 2017Paper 1 Q161 Mark
A ball of mass m is thrown up to height h in air with an initial velocity v, as shown. [Figure showing a ball thrown upwards from P to Q, reaching height h with initial velocity v] Air resistance is negligible. The acceleration of free fall is g. What is the total work done by the gravitational force on the ball during its flight from P to Q?
Azero
B1/2 mv²
Cmgh
D2mgh
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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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