A-LevelPhysicsWork, energy and powerOct/Nov 2016Paper 1 Q201 Mark

A car travels at a constant speed of 25 m s⁻¹ up a slope. The wheels driven by the engine exert a forward force of 3000 N. There is a drag force due to air resistance and friction of 2100 N. The weight of the car has a component down the slope of 900 N. What is the rate at which thermal energy is dissipated?

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

The correct answer is C: 5.3 × 10⁴ W.

Q: What topic does this question test?

This question tests Work, energy and power in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Azero

B2.3 × 10⁴ W

C5.3 × 10⁴ W

D7.5 × 10⁴ W

✓ Correct Answer

The correct answer is C: 5.3 × 10⁴ W

📋 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 Work, energy and power in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics Oct/Nov 2016 examination, Paper 1 Variant 2.

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