set 3 MCQ Questions & Answers Detailed Explanation

Question : 1

On the basis of following features identify the correct option. A. It is measured in units of kg m/s. B. Its direction is same as that of velocity of body.

a) Both A and B

b) Inertia

c) Momentum

d) Neither A and B

Question : 2

If the number representing volume and surface area of a cube are equal, then the length of the edge of the cube in terms of the unit of measurement will be

a) 5

b) 4

c) 3

d) 6

Question : 3

Consider the following statements :

1. Action and reaction act on the same body.
2. Volume is a measure of the inertia of a body.

a) 1 and 2 both

b) 1 only

c) 2 only

d) None

Question : 4

Which of the following is NOT an illustration of Newton's third law ?

a) Walking on floor

b) A cricket player lowering his hands while catching a cricket ball

c) Flight of a jet plane

d) Rebounding of a rubber ball

Question : 5

When a body is stationary

a) the combination of forces acting on it balances each other

b) the force acting on it not in contact with it

c) there is no force acting on it

d) the body is in vacuum

Question : 6

A large truck and a car, both moving with a velocity of magnitude v, have a head-on collision. If the collision lasts for 1 s, which vehicle experiences a greater change in momentum?

a) Both have the different changes in momentum

b) Both have the same change in momentum

c) Car has more change in momentum than truck

d) Truck have more change in momentum than Car