science chapter 16
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Created by:
leahtaylor22 on May 9, 2012
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15 terms
Terms | Definitions |
|---|---|
 echo | a reflected sound wave |
| elasticity | the ability of a material to bounce back after being disturbed |
| density | how much matter, or mass, there is in a given amount of space, or volume |
| loudness | your perception of the energy of the sound |
| intensity | the amount of energy a sound wave carries per second through a unit area |
| decibel | the unnit that compares the loudness of different sounds |
| pitch | the decription of how high or low the sound seems to a person |
| ultrasound | sound waves above the normal human range of hearing |
| infrasound | sounds with frequencies below the normal human range of hearing |
| larynx | voice box |
| doppler effect | the change in frequency of a wave as its source moves in relation to an observer |
| eardrum | small, tightly stretched, drumlike membrane |
| cochlea | a fluid filled cavity shaped like a snail shell |
| echolocation | the use of reflected sound waves to determine distances or to locate objects |
| sonar | a system that uses reflected sound wavesto detect and locate objects underwater |
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