Exam-style question
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Explain how coefficient of performance supports this AQA A-Level Physics objective: use coefficient of performance where appropriate.
Model answer
What a good answer should say
- A strong answer should state the relevant physics principle, identify any quantity, unit, graph feature or evidence involved, and link the conclusion back to Reversed heat engines.
Explanation
Why this works
This checks whether the student can convert the approved objective into a focused written answer without drifting into a neighbouring A-Level Physics concept.
Common mistake
No common mistake is linked to this question yet.