Energy and Work - JSS2 Basic technology Past Questions and Answers - page 1
1
What is energy?
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A
The ability to cause motion
B
The ability to do work
C
The force applied to an object
D
The rate at which work is done
2
Which of the following is NOT a form of energy?
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A
Kinetic energy
B
Potential energy
C
Thermal energy
D
Frictional energy
3
What is the formula for kinetic energy?
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A
KE = mv
B
KE = 1/2 mv²
C
KE = mgh
D
KE = Fd
4
Gravitational potential energy is given by which formula?
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A
PE = 1/2 mv²
B
PE = Fd
C
PE = mgh
D
PE = ma
5
Thermal energy is related to:
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A
The potential energy in chemical bonds
B
The temperature of an object
C
The speed of an object
D
The height of an object above the ground
6
Which form of energy is stored in the bonds of chemical compounds?
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A
Nuclear energy
B
Kinetic energy
C
Thermal energy
D
Chemical energy
7
Work is done when:
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A
A force is applied but there is no movement
B
A force causes an object to move
C
An object is stationary
D
Energy is conserved
8
What is the formula for work?
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A
W = 1/2 mv²
B
W = mgh
C
W = Fd
D
W = ma
9
How are energy and work related?
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A
Energy is the rate at which work is done
B
Work is the transfer of energy
C
Energy is force times distance
D
Work is force per unit area
10
Which of the following activities involves converting chemical energy into kinetic energy?
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A
Boiling water in a kettle
B
Lifting a weight
C
Powering a car engine
D
Stretching a spring
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