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SEPUP - Energy
Test Description: A collection of review questions related to our SEPUP Energy Unit.
Instructions: Answer all questions to get your test result.
1) Which combination of features will have the greatest gravitational potential energy?
A
Low mass and low height
B
Low mass and high height
C
High mass and low height
D
High mass and high height
2) Which statement best describes the Law of Conservation of Energy?
A
Energy is created from the Earth and is destroyed when we use it.
B
Energy should be saved (conserved) for use in the future.
C
All forms of energy can be classified as either potential or kinetic.
D
Energy can not be created or destroyed but it can change from one form to another.
3) The efficiency of a machine means . . .
A
How fast it is
B
How far it will go
C
How much of the energy is used for the expected purpose
D
How much energy it uses
4) When you plug in a radio, what type of energy transformation takes place?
A
Kinetic to potential
B
Electrical to sound
C
Wire to radio waves
D
Battery to motion
5) When you open the refrigerator door for a minute, what happens?
A
The temperature of the air inside the refrigerator decreases.
B
The temperature of the air just outside the refrigerator increases.
C
Thermal energy in the air outside the refrigerator is transferred to the inside.
D
Thermal energy in the refrigerator is transferred to the outside air.
6) Which units are used for measuring energy?
A
Pounds
B
degrees Celsius
C
Meters
D
calories
7) Which list consists of only renewable energy sources?
A
petroleum, tidal, solar, biomass
B
nuclear, petroleum, wind, hydroelectric
C
wind, solar, hydroelectric, tidal
D
Solar, nuclear, coal , wind
8) On a summer day, pavement is hot on your bare feet because it has _______ heat from the sun
A
scattered
B
reflected
C
transmitted
D
absorbed
9) Metals can be compared based on their reactivity. Which pair of metals would produce the most energy when used together in a chemical battery?
A
Two equally reactive metals.
B
Two non-reactive metals
C
Two highly reactive metals
D
More Reactive combined with less reactive
10) Which of these factors affect the strength of solar energy in an area
A
Angle of the moon and tides
B
Temperature and precipitation
C
Time Zone
D
Angle of the sun and amount of daylight
11) How are series circuits and parallel circuits different?
A
Parallel circuits run in straight lines, series circuits are circular.
B
Series circuits are won in 7 games. Parallel circuits are one in two games.
C
Parallel circuits are just longer series circuits.
D
Series circuits have one path of electricity, parallel circuits have more than one path of electricity.
12) More photovoltaic panels in a circuit will create ____________.
A
More electricity
B
Less heat
C
Less electricity
D
More heat
*select an answer for all questions
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