AnswersFL-2003310-Physical Science CRUnit Test

Introduction to Energy Answers

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How does work affect energy between objects so it can cause a change in the form of energy?

A
Work transfers energy.
B
Work changes energy.
C
Work increases energy.
D
Work decreases energy.
2
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Abin is doing work by lifting a bowling ball. Which statement could be made about the energy in this situation?

A
Energy is being transferred from the ball to his arm muscles.
B
Energy is being transferred from his arm muscles to the ball.
C
Energy would be recorded in units of hertz and power.
D
Energy would change from potential to chemical.
3

If Jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, what is being done?

A
compression
B
work
C
radiation
D
energy creation
4

Four people make observations recorded in the table.Which best describes what the observations have in common?

Question illustration
A
They involve nuclear energy.
B
They involve radiant energy.
C
They involve changes in waves.
D
They involve changes in energy.
5

Which statement best defines the relationship between work and energy?

A
Work can transfer energy between objects and increase radiant energy.
B
Work can transfer energy between objects and cause a change in the form of energy.
C
Work can transfer energy between objects and decrease nuclear energy.
D
Work can transfer energy between objects and cause a change in the amount of total energy.
6

Johanna is studying what happens to the energy as a ball rolls down a ramp. What is one form of energy that she is studying?

A
gravitational potential energy
B
electrical energy
C
chemical energy
D
elastic potential energy
7

What is the energy of an object because of its potential and kinetic energies?

A
chemical energy
B
electrical energy
C
nuclear energy
D
mechanical energy
8

What kind of energy involves the flow of charged particles?

A
thermal
B
radiant
C
electrical
D
nuclear
9

Which statement best describes the work and energy in these examples?Example 1: Running a car requires gas.Example 2: Humans require food to live.

A
The gas and food are examples of energy.
B
The gas and food are examples of work.
C
The gas and humans are examples of work.
D
The food and car are examples of energy.
10

Gabriel is performing an experiment in which he is measuring the energy and work being done by a ball rolling down a hill. Which statement best describes Gabriel’s measurements?

A
They will remain constant.
B
They will both be recorded in joules.
C
They will both be recorded in hertz.
D
They will involve compressions.

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