Worksheetsenergy transformations & PE/KE
Total questions: 20
Worksheet time: 16mins
Name
Class
Date
1.
What energy transformation occurs as bioluminescent algae glow in the ocean?
a)
Radiant --> Chemical
b)
Thermal --> Radiant
c)
Chemical --> Radiant
d)
Thermal --> Chemical
2.
What energy transformation occurs in the chameleon as it quickly launches its tongue to catch an insect?
a)
Radiant --> Chemical
b)
Thermal --> Chemical
c)
Chemical --> Mechanical
d)
Mechanical --> Chemical
3.
What energy transformation occurs during photosynthesis?
a)
Chemical --> Radiant
b)
Thermal --> Chemical
c)
Radiant --> Chemical
d)
Mechanical --> Thermal
4.
What do sound energy, radiant energy, and thermal energy all have in common?
a)
They're all forms of kinetic energy
b)
They're all made of similar atoms and molecules
c)
They're all made by plants during photosynthesis
d)
All of these choices
5.
What energy transformations take place when a battery-operated radio is in use?
a)
Electrical to chemical to light
b)
Sound to chemical to mechanical
c)
Chemical to electrical to sound
d)
Light to electrical to thermal
6.
Which of the following devices transforms electrical energy into mechanical energy?
a)
An e-reader
b)
a fan
c)
a manual pencil sharpener
d)
ipod
7.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
8.
__________ is stored energy.
a)
Potential
b)
Kinetic
c)
None of the above
d)
All of the above
9.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
same
10.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above
11.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall
d)
d. a piece of coal before it's burned
12.
Energy due to motion is ____________ energy.
a)
Potential
b)
Energy
c)
Kinetic
d)
Friction
13.
Gravitational potential energy depends on the ________ and ________ of the object.
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction
14.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
15.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
16.
Conservation of energy states that energy cannot be ________ or ________, but can be altered from one form to another.
a)
created, destroyed
b)
gravity, force
c)
heat, created
17.
Which of the following is an exmaple of a change of kinetic energy into gravitational potential energy?
a)
a person parachuting out of a plane
b)
a car racing around an oval track
c)
a person skiing down a hill
d)
a person walking up a hill
18.
What would have the greatest kinetic energy?
a)
A car driving down a hill.
b)
A person running down a hill.
c)
A ball rolling down a hill.
d)
leaves rolling down a hill
19.
Choose the BEST answer that is an example of an energy transformation from potential energy to kinetic energy.
a)
a ball rolling down a ramp
b)
a picture hanging on the wall
c)
a swing swaying back and forth
d)
a coat hanging on a hook
20.
Which is an example of potential energy?
a)
a roller coaster speeding down a hill
b)
the pulled back string on an archers's bow
c)
releasing the strings on a guitar
d)
an electric current lighting a light bulb
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