Superposition




Click a letter to initialize each standing wave:

A B C D E F G H I

Distance is shown in cm and time in seconds.

Which standing wave would represent the third harmonic of a guitar string?
[G ]
Which standing wave would represent the second harmonic of a flute?
[F ]
Which standing wave would represent the third harmonic of a clarinet?
[H ]

Wavelength and Frequency


What is the amplitude of wave F?
[6 ]cm
What is the wavelength of A?
[60 ]cm
What is the frequency of A?
[0.25 ]Hz
What is the wavelength of D?
[30 ]cm
What is the frequency of D?
[0.5 ]Hz
What is the wavelength of G?
[20 ]cm
What is the frequency of G?
[0.75 ]Hz
  
What is the wavelength of B?
[120 ]cm
What is the frequency of B?
[0.125 ]Hz
What is the wavelength of E?
[40 ]cm
What is the frequency of E?
[0.375 ]Hz
What is the wavelength of H?
[24 ]cm
What is the frequency of H?
[0.625 ]Hz


In what way does the harmonic sequence differ for closed/closed and closed/open systems?

Key: The frequencies for the closed/open systems are simply the odd harmonics of the closed/closed.


Credits

Physlet problem authored by Larry Martin and Tait Swenson, North Park University