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Sound

All characteristics of sound.

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 Your perception of the energy in 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 a sound seems to a person.
Ultrasound Sound waves with frequencies above the normal human range of hearing.
Infrasound Sounds with frequencies below the normal 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 a Sonic Boom A shock wave releases a huge amount of energy and people hear a loud noise when the shock wave passes by them.
Fundamental Tone The lowest natural frequency of an object.
Overtones An object's higher natural frequencies.
Acoustics The study of how sounds interact with each other and the environment.
Reverberation When sound waves reflect back and forth off of hard surfaces.
Ear Canal A few-centimeter long narrow region ending at the eardrum.
Eardrum A small, tightly-stretched, drum-like membrane.
Cochlea A fluid-filled cavity shaped like a snail shell.
Echolocation The use of reflected sound waves to determine distances or locate objects.
Sonar A system using reflected sound waves to detect and locate objects underwater.
Sonogram A device that uses reflected ultrasound waves to create a picture.
Created by: jazzymarie00