Power units: Definition of the watt in joules per second One watt (W) is equal to how many joules per second (J/s)? Choose the correct equivalence.

Q: Power units: Definition of the watt in joules per second One watt (W) is equal to how many joules per second (J/s)? Choose the correct equivalence.

Concept Power is the rate of doing work or energy transfer per unit time. Definition 1 watt (W) = 1 joule per second (J/s): P = dW/dt. Final Answer 1 joule/s

Difficulty: Easy

0.1 joule/s
1 joule/s
10 joules/s
100 joules/s

Correct Answer: 1 joule/s

Explanation:

Concept
Power is the rate of doing work or energy transfer per unit time.

Definition
1 watt (W) = 1 joule per second (J/s): P = dW/dt.

Final Answer
1 joule/s

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