Lesson: Chapter 18 — Work, Energy and Power

18.1. Work 2 of 6 Reset answers

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Question 2

A constant force of 1 N moves an object 1 m in the direction of that force. How much work is done?

A 2 J B 1 J C 1 N D 1 W

The right answer is the one marked above.

1 J. This situation is the definition of the joule: one newton acting through one metre in its own direction.

1 N is a force, not an amount of work, and 1 W is a rate of doing work. Neither can be an answer to “how much work”.

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