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
A. The only way the rigid object can be in motion is by
- Accelerating
- Rotating
- Speeding
- Graveting
Answer 2
B. The constant axis around which a rigid object rotates is called as:
- Axis of speeding
- Axis of accelerating
- Axis of rotation
- Axis of opposite direction
Answer 3
C. All particles of an object in a true translational motion
- Move at same velocity at any instant of time
- Move at different velocity at any instant of time
- Never move at the same velocity
- Have no relation to each other
Answer 1
D. Every particle of a rigid object moving around a fixed axis moves
- In a circle which is in a plane 90 degrees to the axis.
- In a circle which is in a plane 0 degrees to the axis.
- In a circle which is in a plane 45 degrees to the axis.
- In a square which is in a plane 90 degrees to the axis.
Answer 1
E. The motion of rigid object not fixed is
- Translation only
- Rotation only
- Either Translation or a combination of translation and rotation
- Only a combination of translation and rotation
Answer 3
F. Total momentum of an object of particles is
- Total Weight of object / Velocity of its Center of mass
- Total Mass of object / Velocity of its Center of mass
- Total Mass of object / Speed of its Center of mass
- Total Weight of object * Velocity of its Center of mass
Answer 4
H. The instantaneous angular velocity is donated by:
- Alpha
- Gamma
- Beta
- Omega
Answer 4
I. In rotation around fixed axis the direction of vector
- Changes with time
- Does not change with time
- Changes with magnitude
- Is directly proportional to time
Answer 2
J. If it is force in linear motion
- It is torque in rotational
- Force in rotational.
- Force and Torque in rotational.
- Velocity in rotational
Answer 1
K. Analogue of mass in rotational motion is
- Moment of Interia
- Moment
- Weight
- Mass X Weight
Answer 1