Discussion:  Simple Harmonic Motion tool 
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Related Item:  http://mathforum.org/mathtools/tool/1127/ 
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Subject:  (no subject) 
Author:  Steve 
Date:  Feb 4 2004 
students get confused as to how phase shifts and wavelengths are expressed. I
really like the idea of being able to manipulate the graph by moving any of
three points. A helpful addition could be to have phi and omega in multiples of
pi, as well as the pure numerical values. Another possible idea would be to
allow students to type in values to see how the graph changes, in addition to
sliding the three points. I noticed that the graph gets a little strange for
very small wavelengths.
 
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