The Potential Energy of Spring NEET Questions

Physics - Work, Energy, and Power

The Potential Energy of Spring MCQ Questions


13.
A spring with spring constant k is compressed by 1 cm, storing potential energy U. If it is further compressed by 3 cm, the change in potential energy will be:

NEET - 2021

A.
9U
B.
8U
C.
4U
D.
3U
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ANSWER :
B. 8U
14.
A spring of force constant k is stretched by x. If the work done in stretching it further by x is W, the total work done in stretching the spring from its natural length to 2x is:
A.
W
B.
2W
C.
3W
D.
4W
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ANSWER :
C. 3W
15.
The force acting on a mass attached to a spring is given by F = -kx. The motion of the mass is:
A.
Uniform circular motion
B.
Linear motion
C.
Simple harmonic motion
D.
Random motion
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ANSWER :
C. Simple harmonic motion
16.
A body of mass m is executing SHM with amplitude A. Its maximum kinetic energy is given by:
A.
½ m A²
B.
k A²
C.
½ k A²
D.
m A²
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ANSWER :
C. ½ k A²
17.
If the amplitude of a spring-mass system is doubled, its total energy will:
A.
Doubled
B.
Quadrupled
C.
Remains same
D.
Halved
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ANSWER :
B. Quadrupled
18.
When a spring is stretched by 10 cm, the potential energy stored is E. If the spring is stretched by 20 cm, the potential energy stored will be:

NEET - 2020

A.
2E
B.
4E
C.
8E
D.
16E
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ANSWER :
B. 4E