LAWS OF MOTION: MCQ ON LAWS OF MOTION SET 2

 

         

Q1 Linear momentum varies inversely with … of the body.

  • (a) Mass 
  • (b) Velocity 
  • (c) Both (a) and (b)
  • (d) None of these

  • (c) Both (a) and (b)

Q2  1 Newton = … dyne

  • a) `10^{5}`
  • b. `10^{3}`
  • c. `10^{-5}`
  • d. `10^{10}`

  • a) `10^{5}`

Q3  Linear momentum is a ….. quantity.

  • (a) Scalar Quantity
  • (b) Vector Quantity
  • (c) None of these 
  • (d) Tensor

  • (b) Vector Quantity

Q4 According to Newton’s second law, F=

  • a) m/a
  • b) `m^{02}`a
  • c) ma
  • d) a/m

  • c) F= ma

Q5  1 gf = ….. dyne

  • a) `10^{5}`
  • b. `10^{3}`
  • c. `10^{-5}`
  • d. None of these

  • d)  None of these ;  1 gf =980 dyne

Q6 Dimensional formula of momentum is

  • a. `M^{1}L^{1}T^{-1}`
  • b. `M^{1}L^{2}T^{-1}`
  • c. `M^{1}L^{1}T^{-2}`
  • d. None of these

    • `M^{1}L^{1}T^{-1}`

Q7  Newton’s second law of motion is consistence with the first law of motion.

  • a) True
  • b) False


  • a) True

Q8 1 kgf = ...... N

  • a) `10^{5}`
  • b. `10^{3}`
  • c.  9.8
  • d. None of these

  • c.  9.8 1kgf = 9.8N

Q9.  Direction of linear momentum is …. as that of velocity of the object.

  • a) same
  • b) opposite 
  • c) can not be determined 
  • d) None of these 

  • a) same

Q10  During collision impulsive force varies ….. 

  • (a) Rapidly 
  • (b) Slowly 
  • (c) Remains Constant 
  • (d) None of these

  • (a) Rapidly 

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