A-LevelPhysicsKinematicsOct/Nov 2015Paper 1 Q71 Mark
A boy throws a ball vertically upwards. It rises to a maximum height, where it is momentarily at rest, and then falls back to his hands. Which row gives the acceleration of the ball at various stages in its motion? (Take vertically upwards as positive. Ignore air resistance.)
Arising: -9.81 ms⁻², at maximum height: 0, falling: +9.81 ms⁻²
Brising: -9.81 ms⁻², at maximum height: -9.81 ms⁻², falling: -9.81 ms⁻²
Crising: +9.81 ms⁻², at maximum height: +9.81 ms⁻², falling: +9.81 ms⁻²
Drising: +9.81 ms⁻², at maximum height: 0, falling: -9.81 ms⁻²
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of kinematics 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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