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