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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 pitch
Term
what pitch do you hear from a long string or bar?
Definition
low pitch
Term
fast vibrations make what kind of sound?
Definition
a high pitch
Term
slow vibrations make what kind of sound?
Definition
a low pitch
Term
how does tension affect pitch?
Definition
it losens or tightends the strings
Term
dose sound travel best through solids,liquids,or,gases?
Definition
liquids
Term
how can you amplify sound?
Definition
with tubes and megaphones
Term
how do ears assist hearing?
Definition
they direct sound and brings the sound to your brain
Term
what must sound have to be heard?
Definition
a source,a receiver,and a medium to travel through
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