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St 4 Ob 4
Test Description: St 4 Ob 4 8th Grade Utah Science
Instructions: Answer all questions to get your test result.
1) What type of energy is stored in a stretched elastic cord?
A
nuclear
B
kinetic
C
chemical
D
potential
2) What do scientists call the energy of motion?”
A
chemical energy
B
motorized energy
C
kinetic energy
D
potential energy
3) Where along the roller coaster track does the rider have the greatest amount of kinetic energy?
A
Going down a hill half way
B
at the top of a loop
C
At the bottom of a hill
D
At the top of a hill
4) What type of energy conversion is taking place inside a flashlight when it is on?
A
electromagnetic energy to chemical energy
B
chemical energy to light energy
C
chemical energy to mechanical energy
D
mechanical energy to light energy
5) What type of energy conversion occurs when logs burn in a campfire?
A
mechanical energy to nuclear energy
B
heat energy to mechanical energy
C
electrical energy to chemical energy
D
chemical energy to heat energy
6) Which of the following is an example of light energy being changed to chemical energy?
A
a flashlight with rechargeable batteries
B
a solar panel that charges a battery
C
food that is eaten to provide mechanical energy
D
a switch that flips up to turn on a light
7) How do humans most often sense light energy?
A
with our ears
B
with our skin
C
with our eyes
D
with our nose
8) How do humans most often sense heat energy?
A
with our skin
B
with our eyes
C
with our ears
D
with our nose
9) How do humans sense energy differently than wild animals like a wolf or deer?
A
wolves and deer have different senses than humans do.
B
humans sense the environment the same way that wild animals do.
C
some human senses are more highly developed, some are less.
D
humans are the only creatures that can sense the environment.
10) What type of energy is stored in a compressed spring in a click pen?
A
Potential
B
Kinetic
C
Nuclear
D
Chemical
11) You and a friend are trying to find who can jump the farthest from a swing. At what point do you have the most potential energy?
A
Half way through your swing forwards.
B
At the lowest point of the swing.
C
The highest point swinging backwards.
D
Half way through your swing upward.
*select an answer for all questions
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