A-LevelPhysicsDynamicsFeb/Mar 2024Paper 1 Q41 Mark
An object of fixed mass is initially at rest at point P. The object then moves away from point P with uniform acceleration. Which statement describes the resultant force acting on the object when it is moving?
AIt increases uniformly with respect to time.
BIt is constant but not zero.
CIt is proportional to the displacement from point P.
DIt is zero.
✓ Correct Answer
The correct answer is B: It is constant but not zero.
📋 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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