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Sound

LC Physics

TermDefinition
Overtones Frequencies which are multiples of a certain frequency. First overtone is 2f.
Harmonics Frequencies which are multiples of a certain frequency. First harmonic is f, which is the fundamental frequency
Loudness Depends on the amplitude of the sound wave.
Pitch Depends on the frequency of the sound wave.
Quality Depends on the number of overtones present and the relative strength of the different overtones.
Frequency Limits of Audibility These are the highest and lowest frequencies that can be heard by a normal human ear. The range is 20 Hz - 20, 000 Hz.
Resonance The transfer of energy between bodies with the same fundamental frequency.
Sound Intensity The rate at which sound energy is passing through unit area at right angles to the direction in which the sound is travelling. i.e. Power/Area.
Threshold of Hearing The smallest sound intensity detectable by the average human ear at a frequency of 1 kHz is 1 x 10^-12 W/m^2.
Fundamental Frequency of a String The frequency that a string vibrates with only an antinode at its centre and two nodes at each end.
Created by: mduffy13
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