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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 youhear 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
high pitches
Term
How does tension affect pitch?
Definition
it pulls the objects apart
Term
Does sound travel best in solids,liquids,or gases?
Definition
yes; in our stethascope expierement we heard the sound better than when it was dry
Term
How can you amplify sound?
Definition
with a amplifier or megaphone
Term
How do ears assist hearing?
Definition
the inner ear has nerves that direct sound into the brain
Term
What must sound have to be heard?
Definition
a source,a receiverand a medium to travel through
Term
Slow vibrations make what kind of sound?
Definition
low pitch
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