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Sound
Sound
10
Science
4th Grade
09/12/2011

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Cards

Term
what causes sound?
Definition
vibration
Term
What pitch do you hear from a short string or bar?
Definition
a high pitch
Term
what pitch do you hear from a long string or bar?
Definition
a low pitch
Term
A fast vibration make what kind of sound?
Definition
makes a high pitched sound
Term
slow vibrations make what kind of sound?
Definition
makes a low pitched sound
Term
how does tension affect pitch?
Definition
the greater the tension the higher it gets.
Term
Does sound travel best through soild, liquids, or gases.
Definition
liquids
Term
How can you amlify sound.
Definition
makes sound londer
Term
How do ears assist hearing
Definition
the outer ear directs sound into your ear and the inner ear herues get sound to the brain
Term
what must sound have to be hread
Definition
a saurce,a receiver and a medium to travel through
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