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- 1. Multiple Choice
Energy is measured using a unit called the
Ruler
Meter
Joule
Kilogram
- 2. Multiple Choice
Which of the following is not a potential energy?
Gravitational
Electrical
Elastic
Chemical
- 3. Multiple Choice
Which of the following is an example of a renewable energy source?
Coal
Natural Gas
Petroleum
Solar
- 4. Multiple Choice
Energy is neither created or destroyed, it only changes from one form to another. This is a definition of…
The law of conservation of mass
The law of conservation of matter
The law of conservation of energy
The law of conservation of power
- 5. Multiple Choice
When you burn coal the following energy transformations occur
Chemical to thermal
light to chemical
Thermal to chemical
Heat to light
- 6. Multiple Choice
Which of the following is not a property of sound?
It travels as a wave
It can’t travel through space
It travels faster than light
it has both pitch and frequency
- 7. Multiple Choice
A electric hair drier is 60% efficient. If 100 J of energy is supplied to the hair drier, the number of joules that is then transformed into heat energy is:
40
100
140
60
- 8. Multiple Choice
The higher an object gets the more ________________ energy it gets
Gravitational
Kinetic
Elastic
useful
- 9. Multiple Choice
Energy efficiency =
Useful energy output / total energy input x 100
Total energy output / total energy input x 100
Total energy output / useful energy input x 100
Useful energy output / useful energy input x 100
- 10. Multiple Choice
The angle of incidence is
equal to the angle of reflection
greater than the angle of reflection
less then the angle of reflection
bigger than the angle of reflection
- 11. Multiple Choice
Renewable energy sources are
Hard to replenish
Bad for the environment
Easy to replenish
Difficult to find
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