Moment of a Force NEET Questions

Physics - Rotational Motion

Moment of a Force MCQ Questions


13.
A force of 100 N is applied at a perpendicular distance of 0.5 m from a pivot. What is the torque?
A.
50 N路m
B.
100 N路m
C.
25 N路m
D.
200 N路m
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ANSWER :
A. 50 N路m
14.
A rotating disc is slowing down. What can be said about the direction of the torque?
A.
Same as angular velocity
B.
Opposite to angular velocity
C.
Perpendicular to the plane
D.
No torque acts
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ANSWER :
B. Opposite to angular velocity
15.
The torque due to a force F about a point P depends on
A.
Magnitude of force
B.
Perpendicular distance from P
C.
Both A and B
D.
Neither A nor B
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ANSWER :
C. Both A and B
16.
A ladder leaning against a smooth wall is in equilibrium. The net torque about the base is
A.
Maximum
B.
Minimum
C.
Zero
D.
Cannot be determined
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ANSWER :
C. Zero
17.
A torque of 12 N路m is applied to a wheel. If the force applied is 4 N, what is the radius of the wheel?
A.
1 m
B.
2 m
C.
3 m
D.
4 m
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ANSWER :
B. 2 m
18.
The moment of force is also known as
A.
Angular velocity
B.
Angular displacement
C.
Torque
D.
Inertia
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ANSWER :
C. Torque