Download Energy-Transformations-Practice-Quiz

Energy Transformations
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Practice QUIZ
Date_________Class_____
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1. A change in composition or structure is called ____.
A.
energy
B.
transformation
C.
generator
D.
turbine
E.
reformation
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2. Energy forms can be ____.
A.
chemical
B.
thermal
C.
electrical
D.
radiant
E.
all of the above
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3. Energy is ___ changing.
A.
always
B.
never
C.
sometimes
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4. Energy transformations that involve chemical changes also produce ___.
A.
electricity
B.
friction
C.
radiation
D.
heat
E.
sound
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5. The law of conservation states: ___
A.
Energy can be created and destroyed.
B.
Energy is never created nor destroyed.
C.
What goes up must come down.
D.
Electrical energy can be transformed into other forms.
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6. As you toss a ball into the air, as soon as the ball leaves your hand, _____________ energy is present and decreases
as the ball rises.
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7. _____ cars use an electric motor as well as a gasoline engine.
A.
Electric
B.
C.
D.
E.
Mechanical
Hybrid
Generic
SUV
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8. Where is the potential energy greatest?
A.
B.
C.
D.
At the dip two cars past the red arrow.
As the car is moving up the hill 3 cars past the red arrow.
At the top of the hill before the red arrow.
There is no example of potential energy.
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9.
Where is the kinetic energy GREATEST?
A.
B.
C.
D.
As the biker is climbing the hill.
As the biker is at the top of the hill.
AS the biker is on the downside of the hill.
There is no example of kinetic energy.
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10. __________ energy is the type of energy light has..
A.
Potential
B.
Thermal
C.
Radiant
D.
Electrical
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11. During energy transformations, energy is never __________.
A.
released as heat
B.
used to increase an object's potential energy
C.
created or destroyed
D.
completely transformed
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12. As energy transformations occur within a system, the total energy of the system __________.
A.
remains constant
B.
increases
C.
decreases
D.
is transferred out of the system
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13. A __________ is a device that transforms kinetic energy into electrical energy.
A.
furnace
B.
boiler
C.
turbine
D.
generator
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14. A baseball is hit into the air with a bat. When does the baseball have the greatest gravitational potential energy?
A.
when it reaches its highest point
B.
when the mechanical and kinetic energies of the baseball are equal
C.
when it leaves the bat
D.
when it hits the ground
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15. __________ is energy stored by things that stretch or compress.
A.
Elastic potential energy
B.
Chemical kinetic energy
C.
Elastic kinetic energy
D.
Gravitational potential
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16. What two factors determine how much gravitational potential energy is in an object?
A.
weight and speed of the object
B.
shape of the object and its position relative to the ground
C.
weight of the object and height above the ground
D.
shape and speed of the object
17. A flashlight changes __________________ energy to ____________________ energy.
A.
radiant energy to chemical energy.
B.
gravitational energy to radiant energy.
C.
chemical energy to radiant energy.
D.
kinetic energy to electric energy.
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18. A motor in a car changes________________ energy to ____________________energy.
A.
B.
C.
electric energy to kinetic energy
kinetic energy to chemical energy
chemical energy to kinetic energy
D.
radiant energy to nuclear energy
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19. A fan changes ___________________energy to ________________________energy.
A.
electric energy to kinetic energy.
B.
kinetic energy to electric energy.
C.
electric energy to potential energy.
D.
radiant energy to electric energy.
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20. A plant leaf changes _________________energy to ___________________energy.
A.
water energy to growing energy.
B.
chemical energy to electric energy
C.
radiant energy to chemical energy.
D.
thermal energy to radiant energy
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21. One part of the Law of Conservation of Energy says that:
A.
Energy can be created.
B.
Energy cannot be created.
C.
Energy is everywhere.
D.
Energy is the same as matter.
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22. A machine that runs itself forever is impossible because
A.
energy is always destroyed when it changes from one form to another.
B.
energy is always lost as heat due to friction.
C.
energy slowly disappears over time.
D.
The sentence is wrong because you can make a machine that runs itself forever.
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23. A battery is a device that can change
A.
kinetic energy to electric energy
B.
electric energy to potential energy
C.
chemical energy to electric energy
D.
stored mechanical to electric energy
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24. One part of the Law of Conservation of Energy says that
A.
Energy can disappear.
B.
There is no energy in space.
C.
Energy cannot be destroyed
D.
Energy cannot be turned into matter.
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25. A machine that runs itself forever is impossible because it goes against
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26. Eating food to move your body is an example of
A.
changing thermal to chemical energy
B.
changing nuclear to kinetic
C.
changing kinetic to potential
D.
changing chemical to kinetic energy
Draw a pendulum and show how its mechanical energy transforms within a period.