The Potential Energy of Spring NEET Questions

Physics - Work, Energy, and Power

The Potential Energy of Spring MCQ Questions


1.
A spring of force constant k is compressed by x from its natural length. The work done in compressing the spring is W. If the spring is further compressed by x, the additional work done is:
A.
W
B.
2W
C.
3W
D.
4W
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ANSWER :
C. 3W
2.
A block of mass m attached to a horizontal ideal spring (spring constant k) is compressed by A from its equilibrium position and released. The maximum kinetic energy of the block is:
A.
½ k A²
B.
k A²
C.
¼ k A²
D.
½ m A²
😑 View Answer Rough Work Error
ANSWER :
A. ½ k A²
3.
A spring of natural length L and spring constant k is stretched by x. The potential energy stored in the spring is:
A.
½ k x²
B.
k x²
C.
½ m x²
D.
½ k x
😑 View Answer Rough Work Error
ANSWER :
A. ½ k x²
4.
Two identical springs of spring constant k are connected in parallel. The equivalent spring constant is:
A.
k/2
B.
2k
C.
k
D.
4k
😑 View Answer Rough Work Error
ANSWER :
B. 2k
5.
If the potential energy of a spring is V when stretched by 2 cm, then its potential energy when stretched by 10 cm will be:

NEET - 2019

A.
V/25
B.
5V
C.
V/5
D.
25V
😑 View Answer Rough Work Error
ANSWER :
D. 25V
6.
A massless ideal spring with force constant k is cut into two equal halves. The spring constant of each half is:
A.
k/2
B.
k
C.
2k
D.
k/4
😑 View Answer Rough Work Error
ANSWER :
C. 2k