Cumulative Exam — Cumulative exam Answers
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Which statement best describes heat and thermal energy?
A
They are different words for the same thing.B
They represent different concepts.C
Heat is what happens when thermal energy stops moving between substances.D
Thermal energy is what happens when heat moves between substances.22
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Which is an example of potential energy?
A
a swimmer kicking their legsB
a car driving on the roadC
an arrow flying at a targetD
a yo-yo in someone’s hand23
A component of a circuit changes, as shown below.
A
A switch is closed, so the circuit would be incomplete and broken and the lights in the circuit would not shine.B
A switch is closed, so the circuit would be complete and unbroken and the lights in the circuit would shine.C
A switch is opened, so the circuit would be incomplete and broken and the lights in the circuit would not shine.D
A switch is opened, so the circuit would be complete and unbroken and the lights in the circuit would shine.24
Which unit is used to measure resistance?
A
voltsB
chargesC
amperesD
ohms25
The graph represents velocity vs. time for Carla.
A
Carla sped up in the beginning of her trip, stopped, and then slowed down.B
Carla had a greater acceleration in the beginning than in the end.C
Carla slowed down in the beginning of her trip, stopped, and then sped up.D
Carla had a continuous acceleration throughout the entire trip.Did you find these answers helpful?
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