A-LevelPhysicsKinematicsMay/June 2018Paper 2 Q313 Marks
A ball is thrown vertically upwards towards a ceiling and then rebounds, as illustrated in Fig. 3.1. [Figure 3.1] The ball is thrown with speed 9.6 m s⁻¹ and takes a time of 0.37 s to reach the ceiling. The ball is then in contact with the ceiling for a further time of 0.085 s until leaving it with a speed of 3.8 m s⁻¹. The mass of the ball is 0.056 kg. Assume that air resistance is negligible.
📋 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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