1.A system of particles is best described as

2.The centre of mass of a system depends on

3.If no external force acts on a system, the centre of mass

4.Translational motion of a rigid body means

5.In pure rotational motion, each particle moves in

6.The axis of rotation is

7.Angular displacement is measured in

8.Angular velocity is defined as

9.Which quantity is same for all particles in rotational motion?

10.Torque is the rotational analogue of

11.The SI unit of torque is

12.Moment of inertia depends on

13.The SI unit of moment of inertia is

14.Greater the moment of inertia of a body

15.Angular momentum is conserved when

16.Rolling motion is a combination of

17.In rolling without slipping, the point of contact is

18.Linear momentum of a system equals

19.A rigid body differs from a particle because

20.For a rigid body in pure translation, angular velocity is

21.The centre of mass of a uniform rod lies

22.If a body rotates about its centre of mass, the COM

23.Torque is maximum when force acts

24.Which is conserved in absence of external force?

25.Which is conserved in absence of external torque?

26.The relation between linear and angular velocity is

27.Angular acceleration is caused by

28.A door opens easily when pushed

29.Which quantity changes when arms of a skater are folded?

30.In the above case, angular velocity

31.Moment of inertia plays the role of

32.The kinetic energy of a rotating body depends on

33.For the same torque, angular acceleration is

34.The centre of mass of a projectile follows

35.Internal forces in a system

36.Which quantity is vector in rotational motion?

37.A couple produces

38.Angular momentum depends on

39.If the radius doubles, linear velocity becomes

40.Which motion best represents combined motion?

41.The instantaneous axis of rotation

42.For a rigid body, distances between particles

43.In absence of gravity, centre of mass of a system

44.Rotational kinetic energy is given by

45.If torque is zero, angular acceleration is

46.The COM of an exploding object

47.Which factor does NOT affect moment of inertia?

48.Angular momentum is defined as

49.When a body rotates faster without external torque, its

50.Conservation of angular momentum is most useful in