Energy Transformations Answers
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The diagram shows a swinging pendulum.
A
The pendulum will slow down and eventually stop moving as the mechanical energy transforms to thermal energy.B
The pendulum will slow down and eventually stop moving as the mechanical energy disappears.C
The pendulum will continue moving at the same speed because mechanical energy is created as the pendulum moves.D
The pendulum will slow down but will not stop moving because some of the mechanical energy is destroyed.2
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Eddie and Val observed the picture of an athlete running in a race.
A
Only Eddie is correct because the picture does not show a transformation that starts with chemical energy.B
Only Eddie is correct because the picture does not show a transformation that ends with mechanical energy.C
Both Eddie and Val are correct because chemical energy is a type of potential energy and mechanical energy includes kinetic energy.D
Both Eddie and Val are correct because chemical energy is a type of kinetic energy and mechanical energy includes potential energy.3
Savion listed the steps involved when nuclear power plants generate electricity. Nuclear reaction occurs. Nuclear energy is converted to radiant and thermal energy. Heat is used to generate steam. Light and heat are released. Steam turns turbines. Mechanical energy is converted to electrical energy.
A
In step 2, change “radiant and thermal ” to “chemical and mechanical.”B
Reorder the steps so that step 4 appears before step 3.C
Reorder the steps so that step 6 appears before step 5.D
In step 6, change “mechanical” to “thermal.”4
What happens in terms of energy when a moving car hits a parked car, causing the parked car to move?
A
The moving car transfers kinetic energy to the parked car.B
Kinetic energy in the moving car disappears.C
Kinetic energy in the parked car is created.D
The parked car transfers kinetic energy to the moving car.Did you find these answers helpful?
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