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9 Cards in this Set
- Front
- Back
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What is sound?
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A compressional wave that travels through a medium that is caused by something that vibrates
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Is a sound wave mechanical or electromagnetic?
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mechanical
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Why can't you hear music on the moon?
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There's no medium for the sound wave to travel through. (air is the medium and theres no air)
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Is a sound wave a compressional wave or a transverse wave?
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compressiona;
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Why do you hear thunder a few seconds after you see lightning?
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Light travels faster than sound.
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What does the elasticity of a mediyum have to do with the speed of sound?
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The more elastic the medium is the greater the speed of sound. SOlids have more elasticity so things travel faster throuhg them
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What causes one sound to be louder than another?
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the amount of energy a sound has, a louder sound has more energy than a quieter sound
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What is the diff between a sound at 50 decibels and a sound at 1000 decibels?
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a sound at 50 decibels is quieter than a sound at 100 decibels
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What is the diff bewtween a sound at 210 Hz and 510 Hz?
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a sound at 210 hz has a lower pitch/frequency than a sound at 510. Hz=wavelength=higher the wavelength=higher the sound
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