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Physical Science Wave Vocab.
Ch. 13
15
Physics
8th Grade
10/26/2009

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Cards

Term
acoustics
Definition
study of sound
Term
cochlea
Definition
spiral shaped structure that is filled with liquid and contains tiny hair cells
Term
decibal
Definition
unit on the scale for sound intensity
Term
Doppler Effect
Definition
change in pitch or wave frequency due to a moving wave source
Term
eardrum
Definition
a tough membrane, about .1 mm thick
Term
echolocation
Definition
the process of locating objects by emminting sounds and feeling the reflected waves
Term
intensity
Definition
the amout of energy that flows through a certain areain a specific amount of time
Term
loudness
Definition
a human perception of sound intensity
Term
music
Definition
sound used in a pattern
Term
overtone
Definition
vibration whose frequency is a multiple of the fundamental frequency
Term
pitch
Definition
how low or high a sound seems to be
Term
quality
Definition
the difference among sounds of the same pitch and loudness
Term
resonator
Definition
hollow chamber that amplifies sound
Term
sonar
Definition
a system that uses the reflection of the underwater sound waves to detect objects
Term
ultrasonic
Definition
used in medicine to digress, monitor, and treat many conditions
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