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ch. 16 Sound Vocab

Chapter 16 SOUND vocabulary

TermDefinition
Echo Reflected Sound wave
Elasticity The ability of as material to bounce back after being disturbed
Density How much mass or matter there is in a given amount of space (volume)
Loudness Your perception of the energy of sound
Intensity The amount of energy a sound wave carries through a given area
Decibel (db) The loudness of different sounds is compared using this unit
Pitch How high or low the sound seems to a person
Ultrasound Sound waves above the normal range of human hearing
Infrasound Sound waves below the normal range of human hearing
Larynx Your vocal cords (voice box) are located here
Doppler Effect The in the frequency of a wave as its source moves in relation to an observer
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
What causes a sonic boom? As a plane surpasses the speed of sound, it passes through the "sound barrier"
Fundamental tone The lowest natural frequency of an object
Overtone The object's higher frequencies
Acoustics The study of how sounds interact with each other and the environment
Reverberation The echos of a sound source stops producing sound waves
Ear Canal A reciever of sound waves
Ear Drum A small, tightly stretched membrane that vibrates when it is hit by sound waves
Cochlea A fluid filled cavity that sends messages to the brain
Echolocation The use of reflected sound to determine distances or locate objects
Sonar The use of reflected sound waves to find objects that are underwater
Sonogram A picture of the inside of the human body
Created by: zachrules01
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