Question detail

Which of the following units is used to measure power?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Energy changes in a system, and the ways energy is stored before and after such changes

Question

  1. A. Joule
  2. B. Watt
  3. C. Newton
  4. D. Kilogram

Answer

Watt

Explanation

Power is measured in watts, which is defined as one joule per second.

Common mistake

Confusing Power and Energy

Students often confuse power (watts) with energy (joules), thinking they are the same.

Remember that power is the rate at which energy is transferred, defined as 1 watt being equivalent to 1 joule per second.

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