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Title: chapter 13 key terms

Description: Northside High Holt

Total Flash Cards: 11

Created: 04/25/2004 11:59:40

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Cards

Term
Compression
Definition
The reigon of a longitudinal wave in which the density and pressure is greater than normal
Term
Rarefaction
Definition
The reigon of a longitudinal wave in which the density and pressure is less than normal
Term
Pitch
Definition
The percived highness and lowness of a sound depending on the frequency of the sound waves
Term
Doppler Effect
Definition
A frequency shift that is the result of relative motion between the source of sound waves and an observer
Term
Intensity
Definition
The rate at which energy flows through a unit area perpendicular to theb direction of wave motion
Term
Decibel Level
Definition
relative intensity determined by relating the intensity of a sound wave to the intensity at the threshold of hearing
Term
Resonance
Definition
A condition tha exsists when the frequency of a force applioed to a system matches the natural frequency of the vibration of the system
Term
Beat
Definition
The interference of waves of slightly diffrent frequencies traveling in the same direction pwercived as a variation in loudness
Term
Fundemental Frequency
Definition
The lowest frequency of vibration of a standing value
Term
Harmonic Series
Definition
A series of frequencies that includes the fundemental frequency and integral multiples of the fundemental frequency
Term
Timbre
Definition
The quality of a steady musical sound that is the result of a mixture of harmonics present at diffrent intesities



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