A-LevelPhysicsWork, energy and powerOct/Nov 2018Paper 1 Q181 Mark
A car of mass 1800 kg accelerates along a horizontal road so that its speed increases from 20 m s⁻¹ to 25 m s⁻¹ in a time of 5.4 s. What is the average useful power output of the car's engine?
A4.2 kW
B38 kW
C120 kW
D1100 kW
✓ 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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