SECTION
ENERGY CAN CHANGE FORMS BUT IS NEVER LOST.
3.2 Reading Study Guide B
BIG IDEA Energy
has different forms, but it is always conserved.
KEY CONCEPT Energy
can change forms but is never lost.
Review
Energy has different forms.
Take Notes
I.
Energy changes forms. (p. 78)
A. Conversions Between Potential Energy and Kinetic Energy (p. 79)
In which diagram does the child on the swing have the most potential energy due
to gravity? Explain your answer.
CHAPTER 3
Energy
Copyright © by McDougal Littell, a division of Houghton Mifflin Company
1.
B. Using Energy Conversions (p. 80)
2.
In the space below, draw a labeled diagram showing each of the four steps to
convert water in a dam into electrical energy. Explain each step.
Draw or write steps
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3.
How is the Sun related to different sources of energy on Earth?
II. Energy is always conserved. (p. 82)
4.
Fill in the frame game with a definition and characteristics for conservation
of energy.
In the diagram below, one ball hits another. When the balls collide, they
produce a loud sound. A small amount of heat is produced. The first ball stops
moving, and the second ball starts moving. What has happened to the kinetic
energy of the first ball?
CHAPTER 3
Energy
5.
!
CRACK
III. Energy conversions may produce unwanted forms of energy. (p. 83)
6.
What does energy efficiency mean? How does it relate to appliances in
the home?
Copyright © by McDougal Littell, a division of Houghton Mifflin Company
CONSERVATION
OF ENERGY
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