LAWS OF MOTION : MCQ ON LAWS OF MOTION SET 4

    

Q1 Action and reaction act on the same body

  • a) True
  • b) False

  • (a) False

Q2 Linear momentum is directly proportional to

  • (a) mass of the body
  • (b) velocity of the body
  • (c) both mass and
  • (d) none of these 

  • (a) mass of the body

Q3 The working of rocket is based on the principle of

  • (a) Newton's law of gravitation
  • (b) Kepler’s Law
  • (c) Newton’s First law 
  • (d) Conservation of linear momentum

  • (d) Conservation of linear momentum

Q4 Force exerted on a body can change its

  • (a) Momentum
  • (b) Velocity
  • (c) Direction of motion
  • (d) All of the above

  • (d) All of the above

Q5 When body is in motion it always changes it

  • (a) Momentum
  • (b) Velocity
  • (c) Position Vector
  • (d) Both a and b

  • (c) Position Vector

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 Which law of motion is also known as law of Inertia

  • (a) Newton’s first law of motion
  • (b) Newton’s second law of motion
  • (c) Newton’s third law of motion
  • (d) All of the above


  • (a)Newton’s first law of motion

Q8 A jet engine works on the principle of conservation of mass (True/False)

  • a. True
  • b. False

  • b. False

Q9. Suppose  a body is travelling with constant speed in a straight line the net force on the body is Zero (True / False)

  • a. True
  • b. False

  • a. True

Q10 A person swimming in a fresh water pool obeys...…

  • (a) Newton’s first law of motion
  • (b) Newton’s second law of motion
  • (c) Newton’s third law of motion
  • (d) All of the above

  • (c) Newton’s third law of motion

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