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9th Class Science Gravitation and Floatation Question Bank Gravitation

  • question_answer
    Two rubber balls of the same size are dropped on the Earth and on the Moon. One ball is solid, and one is hollow. The approximate gravitational field strength on the Earth is 10 N/kg and on the Moon is 1.7 N/kg. Which ball has the greatest force acting on it?

    A)
    Type of ball Where dropped
    Hollow On the Earth

    B)
    Type of ball Where dropped
    Hollow On the Moon

    C)
    Type of ball Where dropped
    Solid On the Earth

    D)
    Type of ball Where dropped
    Solid On the Moon

    Correct Answer: C

    Solution :

    Gravitational force acting on hollow ball is less than solid ball. Gravitational field strength on the Earth is more than that on the Moon.


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