9th Class Science Force and laws of motion Question Bank MCQs - Force and Laws of Motion

  • question_answer
    Match Column I with Column II and choose appropriate option from the codes given below.
    Column I Column II
    (A) Change in momentum 1. kg
    (B) Momentum 2. N
    (C) Force 3. \[\operatorname{Kg}-m{{s}^{-1}}\]
    (D) Mass 4. N-s
    Codes

    A) A-3,  B-4,  C-1,  D-2

    B) A-4,  B-1,  C-2,  D-3

    C) A-4,  B-3,  C-2,  D-1

    D) A-1,  B-2,  C-3,  D-4

    Correct Answer: C

    Solution :

    [c] A \[\to \] 4; Change in momentum = Force \[\times \] Time = N-s
    B \[\to \] 3; Momentum = Mass \[\times \] Velocity = kg\[{{\operatorname{ms}}^{-1}}\]
    C \[\to \] 2; Force = Mass \[\times \] Acceleration = kg \[{{\operatorname{ms}}^{-2}}\] = N
    D \[\to \] 1; Mass = kg


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