## 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) Nm^{-1}
• (b) Ns
• (c) Nm
• (d) Ns^{-1}

• (a) Nm^{-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

• 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 