Equilibrium of Rigid Bodies, Rigid Body Rotation and Equations of Rotational Motion NEET Questions

Physics - Rotational Motion

Equilibrium of Rigid Bodies, Rigid Body Rotation and Equations of Rotational Motion MCQ Questions


7.
The force required to keep a rigid body in equilibrium must satisfy
A.
Translational equilibrium
B.
Rotational equilibrium
C.
Both A and B
D.
None of these
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ANSWER :
C. Both A and B
8.
The angular velocity of a rigid body under constant torque
A.
Increases
B.
Decreases
C.
Remains the same
D.
Becomes zero
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ANSWER :
A. Increases
9.
A body undergoing rotational motion with increasing angular velocity has
A.
Zero angular acceleration
B.
Positive angular acceleration
C.
Negative angular acceleration
D.
Constant angular acceleration
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ANSWER :
B. Positive angular acceleration
10.
A body undergoing uniform circular motion has
A.
Constant angular velocity
B.
Changing angular velocity
C.
Zero angular displacement
D.
Decreasing moment of inertia
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ANSWER :
A. Constant angular velocity
11.
The SI unit of torque is
A.
Newton-meter
B.
Joule
C.
Watt
D.
kg·m²
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ANSWER :
A. Newton-meter
12.
The center of mass of a uniform circular disc lies at
A.
Its geometric center
B.
At its edge
C.
At a distance R from center
D.
At any arbitrary point
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ANSWER :
A. Its geometric center