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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
potential
B
chemical
C
nuclear
D
kinetic
2) What do scientists call the energy of motion?”
A
kinetic energy
B
motorized energy
C
potential energy
D
chemical energy
3) Where along the roller coaster track does the rider have the greatest amount of kinetic energy?
A
At the top of a hill
B
At the bottom of a hill
C
Going down a hill half way
D
at the top of a loop
4) What type of energy conversion is taking place inside a flashlight when it is on?
A
mechanical energy to light energy
B
chemical energy to mechanical energy
C
chemical energy to light energy
D
electromagnetic energy to chemical energy
5) What type of energy conversion occurs when logs burn in a campfire?
A
heat energy to mechanical energy
B
electrical energy to chemical energy
C
mechanical energy to nuclear energy
D
chemical energy to heat energy
6) Which of the following is an example of light energy being changed to chemical energy?
A
food that is eaten to provide mechanical energy
B
a flashlight with rechargeable batteries
C
a switch that flips up to turn on a light
D
a solar panel that charges a battery
7) How do humans most often sense light energy?
A
with our eyes
B
with our nose
C
with our ears
D
with our skin
8) How do humans most often sense heat energy?
A
with our eyes
B
with our skin
C
with our ears
D
with our nose
9) How do humans sense energy differently than wild animals like a wolf or deer?
A
humans sense the environment the same way that wild animals do.
B
some human senses are more highly developed, some are less.
C
wolves and deer have different senses than humans do.
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
Chemical
B
Nuclear
C
Potential
D
Kinetic
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
At the lowest point of the swing.
B
Half way through your swing forwards.
C
Half way through your swing upward.
D
The highest point swinging backwards.
*select an answer for all questions
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