Exam-style question
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What is the unit of power in the context of energy transfer?.
- A.Joule
- B.Watt
- C.Newton
- D.Kilogram
Model answer
What a good answer should say
- Watt
Explanation
Why this works
The unit of power is the Watt (W), which is defined as one joule per second. It quantifies the rate of energy transfer, distinguishing it from energy itself, which is measured in joules.
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