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Which sentence is the definition of the power of a machine? A The amount of work done by the machine - OCR Gateway - GCSE Physics - Question 11 - 2019 - Paper 1

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Which sentence is the definition of the power of a machine? A The amount of work done by the machine. B The efficiency of the machine. C The number of joules of e... show full transcript

Worked Solution & Example Answer:Which sentence is the definition of the power of a machine? A The amount of work done by the machine - OCR Gateway - GCSE Physics - Question 11 - 2019 - Paper 1

Step 1

Which sentence is the definition of the power of a machine?

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Answer

The power of a machine is defined as the rate at which it does work or the amount of energy it uses per unit of time. Thus, the correct answer is:

B - The efficiency of the machine.

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