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Sound - Coggle Diagram
Sound
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Sound Waves
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the relative motion between the source of waves and an observer creates an apparent frequency shift known as the Doppler Affect. (textbook, page 434)
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Harmonics
Harmonics are integral multiples of the fundamental frequency. (textbook, page 434)
A vibrating string or a pipe open at both ends produces all harmonics. (textbook, page 434)
A pipe closed at one end produces only odd harmonics. (textbook, page 434)
The number and intensity of harmonics account for the sound quality of an instrument, also known as timbre. (textbook, page 434)
Big Idea
Sound waves transfer energy through vibrations. Characteristics of the sounds we perceive are due to properties of the sound wave and the medium through which they travel. (textbook page 434)