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12 Cards in this Set

  • Front
  • Back
Eardrum
the tough membrane about 0.1 mm thick
Cochlea
a spiral shaped structure that is filled with liquid and contains tiny hair cells
Intensity
the amount of energy that flows through a certain area in a specific amount of time
Loudness
the human perception of sound intensity
Decibel
unit on the scale for sound intensity
Pitch
how high or low a sound seems to be
Ultrasonic
sound frequencies above 20,000 Hz
Doppler effect
the change in pitch or wave frequency due to a moving sound source
Reverberation
the echoing effect produced by many reflections of sound
Acoustics
the study of sound
Echolocation
the process of locating objects by emitting sounds and interrupting the sound waves that are reflected back
Sonar
a system that uses the reflection of underwater sound waves to detect objects