Shared Flashcard Set

Details

SOUND
sound
10
Science
4th Grade
09/12/2011

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Cards

Term
what causes sound?
Definition
vibrations
Term
what pitch do you hear from a short string or bar?
Definition
high
Term
what pitch do you hear from a long strig or bar?
Definition
low
Term
fast vibrations make what kind of sound?
Definition
a low pitch
Term
slow vibrations make what kind of sound?
Definition
a high pitch
Term
how does tension affect pitch?
Definition
the grater the tension the high the pitch
Term
does sound trvel best through solids liquids or gases?
Definition
liquids
Term
how can you amplify sound?
Definition
makes sound lower
Term
how do ears assist hearing?
Definition
inner ear
Term
what must sound have to be heard?
Definition
a source a receiuer and a medum to travcl through
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