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
