A-LevelPhysicsDynamicsMay/June 2018Paper 1 Q81 Mark

A tennis ball of mass 55g is travelling horizontally with a speed of 30ms⁻¹. The ball makes contact with a wall before rebounding in the horizontal direction with a speed of 20 ms⁻¹. The ball is in contact with the wall for a time of 5.0 × 10⁻³s. What is the average force exerted on the wall by the ball?

Q: What is the correct answer to this A-Level Physics question?

The correct answer is D: 550 N.

Q: What topic does this question test?

This question tests Dynamics in A-Level Physics (syllabus code 9702). It is worth 1 mark.

A110 N

B220 N

C330 N

D550 N

✓ Correct Answer

The correct answer is D: 550 N

📋 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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About This A-Level Physics Question

Topic

This multiple-choice question tests Dynamics in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics May/June 2018 examination, Paper 1 Variant 2.

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