A bungee jumper on a platform over a river is attached to an elastic rope that is 20 m long when unstretched. He falls towards the river and his lowest point is 30 m below the platform. The initial gravitational potential energy of the jumper is transferred to other forms during the jump. Which other forms of energy do the jumper and rope have when the jumper has fallen half-way and when he is at the lowest point of his jump?
✓ Correct Answer
The correct answer is D: half-way: kinetic energy only, lowest point: elastic potential energy only
📋 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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