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Sound Vocabulary

defining words

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 used to compare the loudness of different sounds.
Pitch A 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.
Larnyx The voice box that your vocal cords are located in.
Doppler Effect The change in frequency of a wave as its source moves in relation to an observer.
What causes the Doppler Effect When a sound sources moves, the frequency of the waves changes because the motion of the source adds to the motion of the waves.
What causes the sonic boom The shock wave releases a huge amount a huge amount of energy. People nearby hear the loud noise called a sonic boom when the shock wave passes by them
Fundamental Tone The lowest natural frequency of an object.
Overtone The object's higher 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 source stops from producing sound waves
Ear Canal A narrow region leading from the outside of the human ear to the ear drum.
Ear Drum A small, tightly stretched, drum-like membrane.
Cochlea A fluid-filled cavity shaped like a snail shell.
Echolocation The use of reflection 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 devices uses the reflected ultrasound waves to create a picture (sonogram)
Created by: mmsmith909