A-LevelPhysicsKinematicsMay/June 2023Paper 1 Q61 Mark
A rock is launched vertically upwards from the surface of the Earth and an identical rock is launched vertically upwards from the surface of Mars. Each rock is launched with an initial velocity of 12 m s⁻¹. Each rock then reaches its maximum height above the surface before returning back down to the surface. The velocity-time graph for each rock is shown. In both cases, air resistance is negligible. [Figure 6.1] What is the difference in the maximum heights of the two rocks?
A12 m
B15 m
C19 m
D24 m
✓ Correct Answer
The correct answer is A: 12 m
📋 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...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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