A-LevelPhysicsWork, energy and powerOct/Nov 2024Paper 1 Q161 Mark
A model car travels at a constant velocity of 12 ms⁻¹ in a straight horizontal line. The input power to the engine of the car is 800 W. The efficiency of the engine is 60%. What is the total horizontal resistive force on the car?
A27 N
B40 N
C67 N
D110 N
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of work, energy and power 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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