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Physics 9 Chapter 6 - Work and Energy - 9
1.
Which of the following energy is present in a stretched bow?
a) Chemical energy
b) Wind energy
c) Potential energy
d) Kinetic energy
2.
What is the energy present in the stretched bow called?
a) Elastic potential energy
b) Chemical energy
c) Acceleration potential energy
d) Gravitational potential energy
3.
What is the energy present in a body due to stretched position called?
a) Acceleration potential energy
b) Chemical energy
c) Elastic potential energy
d) Gravitational potential energy
4.
What is the energy present in a body due to its height called?
a) Elastic potential energy
b) Acceleration potential energy
c) Gravitational potential energy
d) Chemical energy
5.
What is the energy present in the hammer due to its height called?
a) Gravitational potential energy
b) Acceleration potential energy
c) Elastic potential energy
d) Chemical energy
6.
Which of the following relation between potential energy and work done due to height is correct?
a) P.E. = F + h
b) P.E. = F h
c) P.E. = F - h
d) P.E. = F / h
7.
Which of the following energy is present in a catapult?
a) Potential energy
b) Kinetic energy
c) Chemical energy
d) Wind energy
8.
What is the formula for potential energy of a body?
a) P.E. = m g h
b) P.E. = m + g + h
c) P.E. = (m g) + h
d) P.E. = m + (g h)
9.
When a body during its free fall motion is about to touch the earth’s surface, what will be its P.E.?
a) Maximum
b) Half
c) Negative
d) Zero
10.
What is the formula for weight of a body?
a) Formula: w = m G
b) Formula: w = m h
c) Formula: w = m g
d) Formula: w = m S
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