Wednesday, 21 September 2022

LAWS OF MOTION : MCQ ON LAWS OF MOTION SET 3

 

   

Q1 Suppose during collision the duration of time is small, then impact of force will be

  • (a) Large 
  • (b) Small 
  • (c) becomes zero
  • (d) None of these.

  • (a) Large 

Q2 The area enclosed by the force versus time curve numerically equals to

  • (a) Change in momentum 
  • (b) Magnitude of impulse
  • (c) Both a and b 
  • (d) None of these.

  • (b) Magnitude of impulse

Q3  S.I units of Impulse are

  • (a) N`m^{-1}`
  • (b) Ns 
  • (c) Nm 
  • (d) N`s^{-1}`

  • (a) N`m^{-1}`

Q4 Impulse  is equal to

  • (a) change in force
  • (b) change in momentum
  • (c) change in velocity
  • (d) change in acceleration

  • (b) change in momentum

Q5 It is easier to catch a leather ball as compare to tennis ball.

  • a) True
  • b) False

  • b) False

Q6 Dimentional formula of Impulse

  • a) `M^{1}L^{1}T^{-1}`
  • b) `M^{1}L^{0}T^{-1}`
  • c) `M^{1}L^{1}T^{-2}`
  • d) `M^{1}L^{2}T^{-1}`

  • a) `M^{1}L^{1}T^{-1}`

Q7 A child on a cart with wheels throws a sand bag forward. what will happen to child 

  • a. He moves to the left
  • b. He moves backward
  • c. He moves forward
  • d. He moves to the right


  • b. He moves backward

Q8 Which is the correct statement about Action and Reaction Forces

  • a. They act on different objects
  • b. They are equal
  • c. They are opposite
  • d. all of the above

  • d. all of the above

Q9. Rocket propulsion is associated with

  • a. Conservation of angular momentum
  • b. Conservation of mass
  • c. Conservation of mechanical energy
  • d. Newton’s third law of motion

  • d. Newton’s third law of motion

Q10 A batsman hits a ball with a force of 5N. What force does the bat experience?

  • a. 5N
  • b. 10N
  • c. 15N
  • d. 20N

  • a. 5N

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