MCQs on System of Particles and Rotational Motion – Chapter -7

MCQs on System of Particles and Rotational Motion Chapter 7 Physics Class 11

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System of Particles and Rotational Motion Chapter 7 Physics Class-11

Other Chapter MCQs

A. The only way the rigid object can be in motion is by

1. Accelerating
2. Rotating
3. Speeding
4. Graveting

Answer 2

B. The constant axis around which a rigid object rotates is called as:

1. Axis of speeding
2. Axis of accelerating
3. Axis of rotation
4. Axis of opposite direction

Answer 3

C. All particles of an object  in a true translational motion 

1. Move at same velocity at any instant of time
2. Move at different velocity at any instant of time
3. Never move at the same velocity
4. Have no relation to each other

Answer 1

D. Every particle of a rigid  object moving around a fixed axis moves

1. In a circle which is in a plane 90 degrees to the axis.
2. In a circle which is in a plane 0 degrees to the axis.
3. In a circle which is in a plane 45 degrees to the axis.
4. In a square which is in a plane 90 degrees to the axis.

Answer 1

E. The motion of rigid object not fixed is

1. Translation only
2. Rotation only
3. Either Translation or a combination of translation and rotation
4. Only a combination of translation and rotation

Answer 3

F. Total momentum of an object of particles is 

1. Total Weight of object / Velocity of its Center of mass
2. Total Mass of object / Velocity of its Center of mass
3. Total Mass of object / Speed of its Center of mass
4. Total Weight of object * Velocity of its Center of mass

Answer 4

H. The instantaneous angular velocity is donated by:

1. Alpha
2. Gamma
3. Beta
4. Omega

Answer 4

I. In rotation around fixed axis the direction of vector 

1. Changes with time
2. Does not change with time
3. Changes with magnitude
4. Is directly proportional to time

Answer 2

J. If it is force in linear motion

1. It is torque in rotational
2. Force in rotational.
3. Force and Torque in rotational.
4. Velocity in rotational

Answer 1

K. Analogue of mass in rotational motion is

1. Moment of Interia
2. Moment
3. Weight
4. Mass X Weight

Answer 1