Teaching Physics with the Physics Suite

Edward F. Redish

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Which wave is which?

In the figure below is shown a picture of a string at a time t1. The pieces of the string are each moving with velocities which are indicated by arrows in the picture. (The vertical displacements are small and don't show up in the picture.)

Below are shown five graphs which could give the shape of the string at the instant for which the velocities are displayed above. (Note: the vertical scale magnifies the displacement by a factor of 100.)

     On your paper, place the letters A - E. Next to these letters, indicate for the graphs labeled by those letters, whether the string is moving as a:

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Page last modified October 30, 2002: O23