AnswersCSD Summer 2026 PhysicalEarth ScienceLab: Magnetic and Electric Fields

Energy Transformations Answers

0 verified answers
1
Free Preview

Taro stated that when someone hits a golf ball with a club, the amount of energy the ball has changes, the amount of energy that the club has changes, and the total energy of the system that includes the ball and the club increases. Which best explains Taro’s error?

A
The amount of energy that the ball has does not change.
B
The amount of energy that the club has does not change.
C
The total energy of the system remains the same.
D
The total energy of the system decreases.
2
Free Preview

Plants are responsible for a very important energy transformation, as shown.

Question illustration
A
radiant to chemical
B
nuclear to mechanical
C
chemical to thermal
D
mechanical to chemical
3

Wood has chemical energy, which can be used to generate thermal and radiant energy when burned in a fireplace. Which best explains what happens to the total amount of energy in this scenario?

A
The total energy in the system increases because chemical energy creates thermal and radiant energy.
B
The total energy in the system decreases because chemical energy disappears as thermal and radiant energy are generated.
C
The total energy in the system remains the same as the decrease in chemical energy equals the increase in thermal and radiant energy.
D
The total energy in the system remains the same as the increase in chemical energy equals the decrease in thermal and radiant energy.
4

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.”
5

The image shows a dam.

Question illustration
A
X: kinetic energyY: potential energy
B
X: potential energyY: kinetic energy
C
X: mechanical energyY: electrical energy
D
X: electrical energyY: mechanical energy
6

The diagram shows a swinging pendulum.

Question illustration
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.
7

Solar-powered cars use energy from the Sun to work. A panel on the car absorbs light energy from the Sun, which then generates an electric current. This electric current, in turn, allows the car to move. Which shows the correct order of energy transformations that take place in a solar-powered car?

A
electrical, chemical, kinetic
B
electrical, kinetic, radiant
C
radiant, chemical, electrical
D
radiant, electrical, mechanical
8

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.
9

What are the two main types of energy?

A
radiant and chemical
B
thermal and radiant
C
potential and chemical
D
kinetic and potential
10

Which activity directly converts energy from the Sun into chemical energy?

A
a snake lying on a sunny rock to keep warm
B
a rabbit using energy from food it has eaten to run
C
a bean plant making its own food to grow
D
a person burning firewood to cook food

Did you find these answers helpful?

More from this Course

Quiz
9 verified answers

Unit Test

Quiz
10 verified answers

Electromagnetism

Assignment
25 verified answers

Unit Test