Kinetic & Potential Energy NEET Questions

Physics - Work, Energy, and Power

Kinetic & Potential Energy MCQ Questions


7.
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
8.
Two bodies of masses m1 and m2 are at heights h1 and h2 respectively above the ground. The ratio of their gravitational potential energies is:

NEET - 2016

A.
m1h1 : m2h2
B.
m2h2 : m1h1
C.
m1h2 : m2h1
D.
m2h1 : m1h2
😑 View Answer Rough Work Error
ANSWER :
A. m1h1 : m2h2
9.
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
😑 View Answer Rough Work Error
ANSWER :
A. 1 : 2
10.
A body of mass 2 kg moving at 3 m/s. Its kinetic energy is:
A.
3 J
B.
6 J
C.
9 J
D.
18 J
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ANSWER :
C. 9 J
11.
A bullet of mass 50 g moves at 200 m/s. Its kinetic energy is: [NCERT Ex 5.4 context]
A.
100 J
B.
500 J
C.
2000 J
D.
1000 J
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ANSWER :
D. 1000 J
12.
If the kinetic energy of a body is increased by 44%, its speed increases by approximately:
A.
44%
B.
22%
C.
44.5%
D.
20%
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ANSWER :
D. 20%