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Sound Vocabulary

TermDefinition
Sound A disturbance that travels through a medium as a longitudinal wave.
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) The loudness of different sounds is compared using a unit called the ______
Pitch description of how high or low the sound seems to a person
Ultrasound` Sound waves with frequencies above the normal human range of hearing
Infrasound sounds with frequencies below the human range of hearing
larynx your voice box
Doppler Effect the change in frequency of a wave as its source moves in relation to an observer
Causes of the Doppler effect when a sound source moves, the frequency of the waves changes because the motion of the source adds to the motion of the waves.
causes of the sonic boom a shock wave forms as the sound waves overlap. the shock wave releases a huge amount of energy. people nearby hear a loud noise called a sonic boom when the shockwave passes by them.
Fundamental tone the lowest natural frequency of an object
overtone the objects highest natural frequencies
acoustics the study of how sounds interact with each other and the environment.
reverberation the echoes of a sound are heard after the sound source stops producing sound waves.
ear canal collects sound waves and moves them down a narrow region in your ear
eardrum 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
Sonar a system that uses reflected sound waves to detect and locate objects underwater
sonogram the device uses the reflected ultrasound waves to create a picture
Created by: klarahouck13
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