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8th Class Science Force and Pressure Question Bank Force and Pressure Formative Objective Problems

  • question_answer
    The weight of a body is 120 N on the earth. If it is taken to the moon, its weight will be about:

    A)  120 N                                   

    B)  60 N

    C)  20 N                     

    D)  720 N

    Correct Answer: C

    Solution :

      We know that \[{{g}_{moon}}=\frac{1}{6}{{g}_{earth}}\] We also know\[W=mg\] \[\Rightarrow \]\[W\propto g\] So\[{{W}_{m}}=\frac{1}{6}{{W}_{c}}=\frac{120}{6}=20\,N\]         


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