AnswersSS4 PGCPS EARTH SPACE OC SUMMER 2027 - 794243Rocks and the Rock Cycle

Potential and Kinetic Energy Answers

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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
2
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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
3

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.
4

Shondra takes notes in class.

Question illustration
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."
5

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
6

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.
7

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.
8

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.
9

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.
10

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.

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