A-LevelPhysicsForces, density and pressureOct/Nov 2014Paper 1 Q11 Mark
A 0.10 kg mass is taken to Mars and then weighed on a spring balance and on a lever balance. The acceleration due to gravity on Mars is 38% of its value on Earth. What are the readings on the two balances on Mars? (Assume that on Earth g = 10ms⁻².)
Aspring balance/N 0.38, lever balance/kg 0.038
Bspring balance/N 0.38, lever balance/kg 0.10
Cspring balance/N 1.0, lever balance/kg 0.038
Dspring balance/N 1.0, lever balance/kg 0.10
✓ Correct Answer
The correct answer is B: spring balance/N 0.38, lever balance/kg 0.10
📋 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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