Vocabulary - Sound
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STUDENT RESOURCE 8.1
Vocabulary
INFORMATION SHEET
pitch how high or low a sound is
vibration a quick back-and-forth
A cat’s meow sounds high.
movement that produces sound
The cat’s meow has a high
Object that vibrate
pitch. The growl of a lion
create sound. People make
sounds low. The growl has a
instruments vibrate by hitting
low pitch.
them, plucking them, or
blowing air through them.
sound a form of energy
produced by vibrating objects
volume how loud or soft a
As objects vibrate back and
sound is
forth, they make air particles
A rock band has a high
vibrate too. These vibrating
volume. It sounds loud. A
air particles move away from
whisper has a low volume. It
the vibrating object in all
sounds soft.
directions. When they reach
your ears, you hear the sound.
FORCES, MOTION, AND MACHINES • SECTION 8 SOUND
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