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Work, Power And Energy — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceWork, Power And Energy1 Mark
MCQ
If an object remains stationary even when force is applied then:
  • A
    Work is said to be done
  • ✓
    Work is not done
  • C
    Work may have been done
  • D
    Work cannot act on that body
✓

Answer

Correct option: B.
Work is not done
Work = Force $\times $ Displacement
Work is said to be done only when the body is displaced from its original position by an applied force on it.
If the body does not displace then no work is being done even if the force is acting on the body.

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