Basic Concepts of Rotational Motion NEET Questions

Physics - Rotational Motion

Basic Concepts of Rotational Motion MCQ Questions


1.
Which of the following quantities is analogous to force in rotational motion?
A.
Momentum
B.
Torque
C.
Displacement
D.
Force
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ANSWER :
B. Torque
2.
Angular acceleration is defined as:
A.
Rate of change of velocity
B.
Rate of change of angular velocity
C.
Rate of change of displacement
D.
Rate of change of force
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ANSWER :
B. Rate of change of angular velocity
3.
The moment of inertia of a rigid body depends on:
A.
Only mass
B.
Only shape
C.
Both mass and shape
D.
Neither mass nor shape
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ANSWER :
C. Both mass and shape
4.
A solid sphere and a hollow sphere of the same mass and radius roll down an incline. Which reaches first?
A.
Hollow sphere
B.
Solid sphere
C.
Same time
D.
None of the above
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ANSWER :
B. Solid sphere
5.
Which of the following statements about torque is correct?
A.
Torque is always perpendicular to force
B.
Torque is always parallel to force
C.
Torque depends on the moment arm
D.
Torque is a scalar quantity
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ANSWER :
C. Torque depends on the moment arm
6.
The unit of moment of inertia in SI system is:
A.
kg路m虏
B.
kg路m
C.
kg路m/s虏
D.
kg路m虏/s
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ANSWER :
A. kg路m虏