Conservative and Non Conservative Forces NEET Questions

Physics - Work, Energy, and Power

Conservative and Non Conservative Forces MCQ Questions


7.
For which force is work done over a closed path always nonzero?
A.
Gravity
B.
Friction
C.
Spring force
D.
Electrostatic force
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ANSWER :
B. Friction
8.
Which of the following forces is NOT a non-conservative force?
A.
Tension
B.
Spring force
C.
Electrostatic force
D.
Gravity
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ANSWER :
D. Gravity
9.
The work done by a conservative force in moving a particle around a closed path is:

NEET - 2016

A.
Always positive
B.
Always negative
C.
Zero
D.
Depends on the path
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ANSWER :
C. Zero
10.
Which of the following is an example of a system with only conservative forces?
A.
Mass-spring system
B.
A car moving on a rough road
C.
A satellite in orbit
D.
A person walking on a flat surface
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ANSWER :
C. A satellite in orbit
11.
Which of the following forces is always perpendicular to displacement?
A.
Gravitational force
B.
Frictional force
C.
Normal force
D.
Tension force
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ANSWER :
C. Normal force
12.
Which force does NOT depend on velocity?
A.
Magnetic force
B.
Friction
C.
Spring force
D.
Air resistance
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ANSWER :
D. Air resistance