Multiple choice

What is the SI unit of energy?

  1. Watt hour

  2. Joule

  3. Calorie

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The SI unit of energy is the Joule, which is defined as the work done by a force of one newton over a distance of one meter. Watt hour is a unit of energy, but it is not the SI unit.

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