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The potential energy of a system increases if work is done:

  1. A
    Upon the system by a conservative force
  2. B
    Upon the system by a non-conservative force
  3. C
    By the system against a conservative force
  4. D
    By the system against a non-conservative force

Solution & Step-by-step Explanation

By definition, the change in potential energy is the negative of the work done by a conservative force:

If work is done by the system against a conservative force, is negative, making positive. Thus, potential energy increases.

Practice this question

Try it yourself before checking the explanation above.

The potential energy of a system increases if work is done:
A
Upon the system by a conservative force
B
Upon the system by a non-conservative force
C
By the system against a conservative force
D
By the system against a non-conservative force

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