This applet demonstrates the Doppler shift. The user can control the frequency of the sound source and the sound speed. The chart recorder at the bottom displays the wave crests as detected by the receiver and their frequency. It also displays the instantaneous wavelength if the ear is at rest. The user can drag the source or the receiver to any location in the display and choose the velocity of each.
This is part of a larger collection of applets by STEM Colorado focused mostly on topics in astronomy.
Please note that this resource requires
at least version 1.4.2_06 of
%0 Electronic Source %A McCray, Richard %A Koelemay, Andrew %D August 29, 2008 %T STEM Colorado: Doppler Shift %V 2013 %N 21 May 2013 %8 August 29, 2008 %9 application/java %U http://scatter.colorado.edu/STEM-TPSoft/java/javaapps/doppler/DopplerApp.jnlp
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