SOUND ENERGY
SOUND
ENERGY
Sound is energy that we
can hear. There are many ways to make sounds. Sound is made when an object vibrates.
Vibrate means to move back and forth.
Volume is how loud or soft
a sound is. You can change the volume of a sound by singing louder of softer,
hitting a drum harder or softer and many things.
Sound can be high or
low. Pitch is how high or low a sound
is. The pitch of a sound can be changed. It can become higher or lower. When
you sing you change the pitch of your voice by following the tune of a song.
The
resources of sound energy
A plane produces high sound
Playing
guitar
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