AnswersFL-2002040-MJ Comprehensive Science 1 CRUnit Test

Introduction to Energy Answers

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Shondra takes notes in class.

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A
Switch "the energy of moving objects" and "the ability to do work" and place chemical energy under "Forms of energy."
B
Switch "the energy of flowing electrical charges" and "the energy in a spring" and place kinetic energy under "Forms of energy."
C
Switch "the energy in the nuclei of atoms" and "the energy stored in objects'" and place nuclear energy under "Main categories of energy."
D
Switch "the energy from the Sun" and "the energy of a rock on a hill" and place electrical energy under "Main categories of 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

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
4

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.
5

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.
6

What kind of energy involves the flow of charged particles?

A
thermal
B
radiant
C
electrical
D
nuclear
7

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.
8

The sun emits electromagnetic waves at many frequencies, but mostly in the infrared, visible, and ultraviolet spectrums. What kind of energy is this?

A
nuclear
B
radiant
C
thermal
D
chemical
9

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

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A
They involve nuclear energy.
B
They involve radiant energy.
C
They involve changes in waves.
D
They involve changes in energy.
10

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

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