4th Class Science Work, Force and Energy Question Bank Work, Force and Energy

  • question_answer 21) Work is said to be done when ______.

    A) force is applied, it does not matter whether the things move or not.

    B) force is applied and the object moves.

    C) we push a wall.

    D) whenever force is applied.

    Correct Answer: B

    Solution :

        Work is said to be done when force applied causes some changes.

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