Kinetic & Potential Energy NEET Questions

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

Kinetic & Potential Energy MCQ Questions


13.
The change in potential energy (ΔV) is related to work done by a conservative force (W_cons) by:
A.
ΔV = W_cons
B.
ΔV = −W_cons
C.
ΔV = 2W_cons
D.
W_cons = ΔV/2
😑 View Answer Error
ANSWER :
B. ΔV = −W_cons
14.
The zero of potential energy is:
A.
Always at the Earth's surface
B.
Always at the equilibrium position
C.
Arbitrary — set according to convenience for each problem
D.
Always at infinity
😑 View Answer Error
ANSWER :
C. Arbitrary — set according to convenience for each problem
15.
Gravitational potential energy of a mass m at height h above ground (taking ground as reference level, g = constant) is:
A.
mgh²/2
B.
½mgh
C.
mgh
D.
mg/h
😑 View Answer Error
ANSWER :
C. mgh
16.
A 5 kg ball is raised to a height of 3 m. Increase in gravitational PE is: (g = 10 m/s²)
A.
15 J
B.
50 J
C.
100 J
D.
150 J
😑 View Answer Error
ANSWER :
D. 150 J
17.
A 2 kg ball is dropped from height 5 m. Just before hitting the ground, its speed is: (g = 10 m/s²)
A.
5 m/s
B.
10 m/s
C.
√50 m/s
D.
√100 m/s
😑 View Answer Error
ANSWER :
B. 10 m/s
18.
An object is raised to double its original height. Its gravitational potential energy:
A.
Doubles
B.
Quadruples
C.
Increases by √2 times
D.
Remains same
😑 View Answer Error
ANSWER :
A. Doubles
Prev Next page