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Lecture 22 Physics of Music
Course: PHYS 100, Fall 2009School: Rochester
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of Physics Music (Lecture 22) Sound velocity V Vel V V(air) = 345 meters/second 1 Repeat every T seconds 3 2 1 L = distance L = VT Frequency f is # times each second f = 1/T 2 Sinusoidal shapes amplitude A wavelength Basic equation of waves frequency* V wavelength= f*L = V 3 How do 2 waves combine? A = A1+ A2 Intensity I I = (A1+ A2) If A1 = - A2 then 2 I=0 4 Standing Waves Vel ? /2 Length L 5...
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of Physics Music (Lecture 22) Sound velocity V
Vel V
V(air) = 345 meters/second
1
Repeat every T seconds
3 2 1
L = distance L = VT
Frequency f is # times each second f = 1/T
2
Sinusoidal shapes
amplitude A
wavelength
Basic equation of waves frequency* V wavelength= f*L = V
3
How do 2 waves combine?
A = A1+ A2
Intensity I
I = (A1+ A2)
If A1 = - A2
then
2
I=0
4
Standing Waves
Vel
? /2
Length L
5...
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