7th Class Science Related to Competitive Exam Question Bank Work and energy

  • question_answer
    DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage ? 1 Centripetal force is a requirement for circular motion.  No work is done on a body by centripetal force in a circular path. The work done by a centripetal force -

    A) increases by decreasing the radius of the circle

    B) decreases by increasing the radius of the circle

    C) increases by increasing the mass of the body

    D) is always zero

    Correct Answer: A

    Solution :

        increases by decreasing the radius of the circle


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