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
A high pitch
Term
What pitch do you hear from a long string or bar?
Definition
A low pitch
Term
Fast vibrations make what kind of sound?
Definition
High pitch sounds
Term
Slow vibrations make what kind of sound?
Definition
Low pitch sounds
Term
How does tension affect pitch?
Definition
It makes the sound higher
Term
Does sound travel best through solids,liguids,or gases,and why?
Definition
Water,because sounds are louder in,water.
Term
How can you amplify sounds?
Definition
Your outer ear.
Term
How do ears assist hearing?
Definition
The inner ear gets sound into your ear and the outer ear amplifies sound.
Term
What must sound have to be heard?
Definition
A soure,receiver,and a medium to travel through.
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