http://www.ck12.org Chapter 20. Sound
CHAPTER
20 Sound
Chapter Outline
20.1 Characteristics of Sound
20.2 HEARINGSOUND
20.3 USINGSOUND
20.4 REFERENCES
You can almost hear the sound of this colorful African drum! The drummer must be hitting the drum quickly
because his hands are a blur of motion. Each time he strikes the drum, it produces a loud, pounding sound. There are
hundreds of different kinds of musical instruments, from drums to horns to stringed instruments. Would it surprise
you to learn that all of them make sound in the same basic way? Do you know how sounds are created? You’ll learn
how when you read this chapter.
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