What is energy, and what are energy transformations? Energy and

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Date
Energy and Energy Transformations
What is energy, and what are energy transformations?
Before You Read
Before you read the chapter, think about what you know about energy and energy transformations.
Write three things you already know about energy and how energy changes in the first column. Then
specify three things that you would like to learn in the second column. When you have completed the
chapter, think about what you have learned and complete the third column.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
K
What I Know
W
What I Want to Learn
L
What I Learned
Chapter Vocabulary
Lesson 1
Lesson 2
NEW
NEW
energy
kinetic energy
potential energy
work
mechanical energy
sound energy
thermal energy
electric energy
radiant energy
nuclear energy
law of conservation of
energy
friction
Energy and Energy Transformations
115
Lesson 1
Forms of Energy
Skim Lesson 1 in your book. Read the headings and look at the photos and illustrations.
Select three things you want to learn more about as you read the lesson. Write your ideas in
your Science Journal.
What is energy?
I found this on page
Organize information about energy.
.
Energy
the ability to
Examples
Kinetic Energy—Energy
of Motion
I found this on page
Complete the sentence frame to explain kinetic energy.
.
of an object.
depends on the
Potential Energy—
Stored Energy
I found this on page
Relate information about potential energy.
.
Potential
Energy
three forms
116
Energy and Energy Transformations
energy
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Kinetic energy
Lesson 1 | Forms of Energy (continued)
I found this on page
.
Classify the 3 forms of potential energy. Describe or draw a
picture of an example of each form.
Potential Energy
Form
Definition
Example
depends on the
mass of the object
and its height
above the ground
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Elastic
I found this on page
.
Draw a picture of a yo-yo as it moves up and down a string. Label
your drawing with these terms:
• potential energy
• kinetic energy
Energy and Energy Transformations
117
Lesson 1 | Forms of Energy (continued)
Explain the relationship between work and energy.
Energy and Work
I found this on page
.
I found this on page
.
Classify examples of work. Circle the examples in which work
is occurring.
lifting a box
ice skating
sitting in a car
grocery shopping
kicking a ball
pushing on a wall
sending a text message
thinking
Identify the forms of energy.
Other Forms of Energy
I found this on page
.
Forms of
Energy
Description
Mechanical
the sum of kinetic energy and potential energy of
the particles that make up an object
Electric
Radiant or
light
energy stored and released in an atom
Analyze It Use the terms kinetic energy and chemical potential energy to describe the
types of energy demonstrated as you eat an apple on your way to class.
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Energy and Energy Transformations
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Sound