A-LevelPhysicsDynamicsOct/Nov 2020Paper 1 Q81 Mark
What is not a statement of one of Newton's laws of motion?
AIf body X exerts a force on body Y, body Y exerts an equal and opposite force on body X.
BIf no resultant force acts on a body it has constant velocity.
CThe rate of change of momentum of a body is proportional to the resultant force acting on it
and takes place in the direction of the force.
DThe total momentum of a system of interacting bodies is constant if there is no external force.
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of dynamics within the Physicssyllabus. The examiner's mark scheme requires...
📋 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...
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