Q1 When a bus suddenly takes a turn, the passengers are thrown outwards because of
- (a) Inertia of direction
- (b) Inertia of motion
- (c) Inertia of rest
- (d) Acceleration of motion
- (a) Inertia of direction
Q2 Two bodies of equal mass, one in motion and another is at rest, then which is correct for these bodies
- (a) both possess no inertia
- (b) both possess different inertia
- (c) both have same inertia
- (d) can’t say anything
- (c) both have same inertia, because inertia is a factor of mass only and does not depend upon velocity
Q3 All the objects have inertia, whether they are moving or not.
- (a) True
- (d) False
- (a) True
Q4 The mud guards over the wheel of car is on the basis of inertia of rest.
- (a) True
- (d) False
- (d) False ; Due to inertia of motion.
Q5 Inertia is a physical quantity.
- a) True
- b) False
- b) False it is only a property of the body which depends on mass of the body)
Q6 When a horse at full gallop stops suddenly, the rider falls forward on account of
- a) inertia of motion.
- b) inertia of rest
- c) inertia of direction
- d) all of these
- a) inertia of motion.
Q7 A particle is moving with a constant speed along straight-line path. In which situation there is no need of force
- (a) Increase its speed
- (b) Decrease the momentum
- (c) Change the direction
- (d) Keep it moving with uniform velocity
- (d) Keep it moving with uniform velocity
Q8 Newton’s first law defines
- (a) momentum and acceleration
- (b) inertia and force
- (c) force and velocity
- (d) Momentum and energy
- (b) inertia & force
Q9. What causes the motion of a body which is initially in the state of rest?
- (a) Force
- (b) Displacement
- (c) Speed
- (d) Velocity
- (a) Force
Q10 Newton’s first law of motion is also called law of
- a) Law of momentum
- b) Law of Inertia
- c) Law of conservation of energy
- d) None of these
- b) Law of Inertia
