A-LevelPhysicsWork, energy and powerFeb/Mar 2018Paper 1 Q171 Mark
A small diesel engine uses a volume of 1.5 × 10⁴ cm³ of fuel per hour to produce a useful power output of 40 kW. It may be assumed that 34 kJ of energy is transferred to the engine when it uses 1.0 cm³ of fuel. What is the rate of transfer from the engine of energy that is wasted?
A102 kW
B142 kW
C182 kW
D470 kW
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The correct answer is A. This question tests the candidate's understanding of work, energy and power within the Physicssyllabus. The examiner's mark scheme requires...
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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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