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Energy Transfer
Test Description: 7.P.2
Instructions: Answer all questions to get your test result.
1) As the velocity of a runner increases, which type of energy also increases?
A
Potential
B
Electrical
C
Chemical
D
Kinetic
2) What does the mechanical energy of a system include?
A
the sum of the potential and kinetic energy
B
only the kinetic energy
C
the difference of the potential and kinetic energy
D
only the potential energy
3) A rock that falls off a cliff demonstrates both potential and kinetic energy. Which is the best comparison of these two forms of energy?
A
As the potential energy decreases, the kinetic energy decreases.
B
As the kinetic energy increases, the potential energy decreases.
C
The amount of potential energy is equal to one-fourth of the kinetic energy.
D
The amount of kinetic energy is equal to one-half of the potential energy.
4) A roller coaster is climbing up the highest hill on its track. At which point will the front car of the coaster most likely have its greatest potential energy?
A
at the end of the track
B
at the bottom of the highest hill
C
at the top of the highest hill
D
at the start of the track
5) Thomas watches an orange fall from a tree to the ground. Which best describes the flow of energy as the orange falls and hits the ground?
A
Kinetic energy → Potential energy → Sound energy
B
Solar energy → Potential energy → Heat energy
C
Potential energy → Kinetic energy → Sound energy
D
Potential energy → Sound energy → Heat energy
6) The motor of one car is more powerful than the motor of another car. Which of the following must be true of the more powerful motor?
A
it can do work more quickly
B
it can operate for a longer time
C
it can burn fuel more efficiently
D
it can store more potential energy
7) Which of the following is the best example of work being done on an object?
A
pushing on a car that will not move
B
keeping a board in place
C
holding a 50kg barbell
D
lifting a bag of groceries
8) Which of the following converts electrical energy into motion?
A
electric fan
B
light switch
C
electric stove
D
light bulb
9) When electric current flows through the metal filament of a light bulb, electrical energy is converted to which of the following:
A
light and motion energy
B
light energy only
C
heat energy only
D
heat and light energy
10) A toy car is placed at the top of a ramp and released. Which situation describes how the cars energy is transformed?
A
The car has a large amount of mechanical energy at the top of the ramp, which is converted into thermal energy
B
The car has a large amount of kinetic energy at the top of the ramp, which is converted into chemical energy
C
The car has a large amount of kinetic energy at the top of the ramp, which is converted into potential energy
D
The car has a large amount of potential energy at the top of the ramp, which is converted into kinetic energy
*select an answer for all questions
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