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22 Cards in this Set

  • Front
  • Back
a reflected sound wave
echo
the ability of a material to bounce back after being diturbed
elasticity
the ratio of the mass of a substance to its volume
density
perception of the energy of a sound
loudness
the amount of energy per second carried through a unit area by a wave
intensity
a unit used to compare the loudness of different sounds
decibels (dB)
perception of the frequency of a sound
pitch
sound waves with frequencies above 20,000 Hz
ultra sound
sound waves with frequencies below 20 Hz
infra sound
two folds of tissue that make up the human voice box
larynx
the change in frequency of a wave as its source moves in relation to an observer
doppler effect
a set of tones and overtones combined in a way that is pleasing
music
the lowest natural frequency of an object
fundamental tone
a natural frequency that is a multiple of the fundamental tone's frequency
overtone
the study of how sounds interact with each other and their surroundings
acoustics
the echoss of a sound that are heard after a sound source stops producing sound waves
reverberation
a narrow region leading from the outside of the ear to the eardrum
ear canal
a small tightly stretched drumlike membrane in the ear
ear drum
a fluid filled cavity in the ear that is shaped like a snail shell
choclea
the use of reflected sound waves to determine distances or to locate objects
echolocation
a sustem that uses reflected sound waves to detect and locate underwater objects
sonar
an image formed using reflected ultrasound waves
sonogram