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Ch 16 Sound Vocab

TermDefinition
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 describes your perception of the energy of a sound
intensity the amount of energy a sound wave carries per second through a unit area
decibel (dB) a unit that compares the loudness of different sounds
pitch a description of how high or low the sound seems to a person
ultrasound sound waves with frequencies beyond the normal human range of hearing
infrasound sounds with frequencies below the human range of hearing
larynx the voice box in which your vocal cords are located
Doppler effect the change in frequency of a wave as its source moves in relation to an observer
music a set of notes that combine in patterns that are pleasing
fundamental tone the lowest natural frequency of an object
overtones the object's higher natural frequencies
what causes the doppler effect when a sound source moves,the frequency of the waves change because the motion of the source adds to the motion of the waves
acoustics the study of how sounds interact with each other and the environment
reverberation the echos of sound are heard after the source stops producing sound waves
ear canal the narrow region of your ear
ear drum a 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
what causes a sonic boom when a shock waves forms and the sounds overlap, it releases a huge amount of energy and people nearby hear this loud nose when the shock wave passes by them
sonar a system that uses reflected sound waves to detect and locate objects underwater
sonogram the device used to reflect ultrasound waves to create a picture
Created by: maddiemclennan