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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 pich do you hear from a short string or bar?
Definition
a high pich
Term
what pich do you hear from a long string or bar ?
Definition
alow pich
Term
fast vibration make whaat kind of sound?
Definition
high pich sound
Term
slow vibration make what kind of sound ?
Definition
a low pich sound
Term
how does tension affect pich?
Definition
it make the sound high
Term
dose sound travel best though solids,liquid,gases ?
Definition
liquid
Term
how can you amplify sound
Definition
get tubes or a megphone
Term
how do ears assist hearing
Definition
the outer ear direts sound into the ear
Term
what must sound have to be heard
Definition
a source a recever and a medium to travel thourough
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