Kinetic & Potential Energy NEET Questions

Physics - Work, Energy, and Power
Kinetic & Potential Energy

Kinetic & Potential Energy MCQ Questions


1.
The kinetic energy of a body of mass m moving with speed v is:
A.
mv
B.
mv²
C.
½mv²
D.
2mv²
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ANSWER :
C. ½mv²
2.
Kinetic energy is a measure of:
A.
The force acting on the body
B.
The work the body can do by virtue of its motion
C.
The momentum of the body
D.
The power of the body
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ANSWER :
B. The work the body can do by virtue of its motion
3.
Which of the following is TRUE about kinetic energy?
A.
KE is a vector quantity in the direction of velocity
B.
KE can be negative when body moves in negative direction
C.
KE is always a positive scalar quantity
D.
KE depends on direction of motion
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ANSWER :
C. KE is always a positive scalar quantity
4.
A body of mass m has momentum p. Its kinetic energy in terms of p and m is:
A.
p/2m
B.
p²/m
C.
p²/2m
D.
2p/m
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ANSWER :
C. p²/2m
5.
Two bodies of masses m and 4m have the same momentum p. The ratio of their kinetic energies (K_m : K_4m) is:
A.
1 : 4
B.
4 : 1
C.
1 : 2
D.
2 : 1
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ANSWER :
B. 4 : 1
6.
Two bodies of masses m and 4m have the same kinetic energy K. The ratio of their momenta (p_m : p_4m) is:
A.
1 : 2
B.
2 : 1
C.
1 : 4
D.
4 : 1
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ANSWER :
A. 1 : 2
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