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What is sounds
TOPIC 1
SUBTOPIC 1
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2017
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TOPIC 2
Sound are type of energy made by vibration.When any object vibrates,it causes move ment in a object like car,jet,trunk
TOPIC 2
How does sound travel
TOPIC 3
Sound travel in a vibration becaues when we started by some mechanicul such as some mechanicul such as some plucking a guitarstring or knocking on a door.
What is pitch
Pitch is the sound are high and low; some are loud and other barely audible; some are pieasant.
TOPIC 4
how can pitch be changed
TOPIC 4
Pitch can be changed by a guitar string and you can use a volmote.
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