Kinetic & Potential Energy NEET Questions

Physics - Work, Energy, and Power

Kinetic & Potential Energy MCQ Questions


13.
If the velocity of a moving body is doubled, its kinetic energy will:
A.
Double
B.
Quadruple
C.
Remain the same
D.
Halve
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ANSWER :
B. Quadruple
14.
The potential energy of an object is maximum when it is:
A.
At the highest point in the field
B.
At the lowest point in the field
C.
Moving with maximum speed
D.
Moving with minimum speed
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ANSWER :
A. At the highest point in the field
15.
In a closed system, the total mechanical energy is:
A.
Always zero
B.
Constant
C.
Always increasing
D.
Always decreasing
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ANSWER :
B. Constant
16.
The potential energy of an object increases when it is:
A.
Moving upwards
B.
Moving downwards
C.
Speeding up
D.
Slowing down
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ANSWER :
A. Moving upwards
17.
The work-energy theorem states that the work done on an object is equal to:
A.
The change in its mass
B.
The change in its momentum
C.
The change in its potential energy
D.
The change in its kinetic energy
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ANSWER :
D. The change in its kinetic energy
18.
An object of mass 4 kg is moving with a velocity of 3 m/s. The kinetic energy of the object is:
A.
18 J
B.
36 J
C.
9 J
D.
72 J
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ANSWER :
A. 18 J