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8th Grade Unit 3b

Sound waves part 2

TermDefinition
Mach I An object reaches this point when it breaks the sound barrier
Medium A substance that sound can travel through
Middle ear The part of the ear that contains the ossicles (ear bones)
Outer ear The part of the ear that receives sound input from the outside world
P wave Primary compression wave that occurs during an earthquake
Pitch The high or low effect of sound based on frequency
Rarefaction The decompression of a compression wave
S wave The transverse wave associated with an Earthquake
Seismograph An instrument that records seismic waves
Sonic Boom The release of a massive sound wave that occurs when an object breaks the sound barrier
Sound barrier The point at which an object exceeds the speed of sound
Sound wave A compression wave that carries energy to a natural or artificial device that can detect pressure changes
Speed of sound 343.2 meters per second or 1,126 ft/s. This is equivalent to 1,236 kilometers per hour or 768 mph
Created by: darrin_evans
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