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Energy Review Utah 8.2.1 - 8.2.3
Test Description: Utah 8.2.1 8.2.2 8.2.3
Instructions: Answer all questions to get your test result.
1) Select the best argument and evidence to explain the phenomenon of the bottom of your shoe sole melting when you press on a metal scooter brake.
A
The brake got hot and melted your shoe because heat energy changed into kinetic energy through friction.
B
The hot brake melted your shoe because potential energy changed to mechanical energy
C
The hot tire melted your shoe because gravitational potential energy changed to elastic potential energy.
D
The brake got hot and melted your shoe because kinetic energy changed into heat energy through friction.
2) How does the distance in the system affect the amount of energy given to the rock in the sling shot?
A
Pulled back more → more potential energy in the slingshot → less kinetic energy for the rock.
B
Pulled back less → more potential energy in the slingshot → more kinetic energy for the rock
C
Pulled back more → more potential energy in slingshot → more kinetic energy for the rock.
D
Pulled back less → more potential energy in the slingshot → less kinetic energy for the rock.
3) Where on a roller coaster has the most gravitational potential energy?
A
At the top of the largest hill
B
At the top of a loop
C
At to bottom of the largest hill
D
Half way down the largest hill
4) What is the relationship between the amount of mass and the amount of kinetic energy of an object moving at a constant speed.
A
More mass has more kinetic energy
B
The amount of mass does not change the amount of kinetic energy
C
More mass has less kinetic energy
5) Two trucks move at the same speed toward a brick wall. One is empty and one is full of stone. Which would you expect to cause the most damage to the brick wall and why?
A
The full truck because it has more kinetic energy.
B
Both trucks will cause the same damage because they are the same size.
C
The empty truck because it is moving faster.
D
The full truck because it has less kinetic energy.
6) Two cars of the same mass are traveling down the road. One is going 30mph and the other 40 mph. Which has more Kinetic Energy?
A
The 30mph because it is moving slower
B
The 40 mph because it is moving faster
7) When a roller coaster is going UP a hill, what is happening to the energy?
A
Kinetic is turning into Potential
B
Energy is being destroyed
C
Potential Energy is Turning into Kinetic
D
Energy is being created
8) When a roller coaster is going DOWN a hill, what is happening to the energy?
A
Kinetic is turning into Potential
B
Energy is being created
C
Energy is being destroyed
D
Potential Energy is Turning into Kinetic
9) What type of energy is stored in a stretched rubber band?
A
Mechanical
B
Physical
C
Kinetic
D
Potential
10) What has more Potential Energy?
A
A ball rolling at the bottom of a hill
B
A ball sitting at the top of a hill
C
A ball rolling up a hill
D
A ball rolling midway down a hill
*select an answer for all questions
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