1. The unit of the radius of gyration is –
 Kg m²
 m
 Kg
 Kg m
2. A couple produces –
 Only linear motion
 Only rotational motion
 Linear and rotational motion both
 No motion
3. The center of mass of a body –
 Lies always at the geometrical center
 Lies always inside the body
 Lies always outside the body
 May lie within or outside the body
4. Moment of linearmomentum is
 Couple
 Angularmomentum
 Impulse
 Torque
5. S. I. unit of moment of inertia is –
 Kgm
 Kgm⁻¹
 Kgm²
 Kgm⁻²
6. Radius of gyration of a body depends upon –
 axis of rotation
 translational motion
 the shape of the body
 area of the body
7. The unit of the Torque is –
 N
 Nm²
 Nm
 None of these.
8. The center of mass of a system of particles does not depend on –
 Masses of the particles
 Forces on the particles
 Position of the particles
 The Relative distance between the particles
9. Angular momentum is –
 Axial vector
 Scalar
 Polar vector
 None of these
10. Analogue of mass in rotational motion is –
 moment of inertia
 torque
 radius of gyration
 angular momentum
11. Unit of angular momentum is
 Nm
 Kg.m/s²
 Kg.m/s
 Kg²m/s²
12. The moment of inertia of a body does not depend upon

 Axis of rotation
 Mass
 Distribution of mass
 Angular velocity
13. A shell at rest explodes. The center of mass of the fragments
 Moves along a particle path
 Moves along an elliptical path
 Moves along a straight line
 Remains at rest.