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Ch 16 Sound Vocab
Term | Definition |
---|---|
Echo | a reflected sound wave |
Elasticity | the ability of a material to bounce back after being distturbed |
Density | the ratio of the mass of a substance to its volume |
Loudness | perception of the energy of a sound |
Intensity | the amount of energy per second carried through a unit area by a wave |
Decible | a unit use to compare the loudness of a different sounds |
Pitch | perception of frequency of a sound |
Ultrasound | sound waves whit frequencies above |
Infrasound | sound waves whit frequencies below 20 HZ |
Larnyx | two folds of tissue that makes up the human voice box |
Doppler Effect | the changes in frequency when atoms share to pairs of electron |