Use(s) Material is not Suited For: Tutorial
Time distance scales have no units. This must be provided with instructions for use of the applet. It may be difficult for introductory students to connect the general picture of say a standing wave on a string to the displayed picture. More detailed exercises or worksheets may need to be incorporated for students to get the most out of these physlets.
General Comments on Effectiveness: This is an effective teaching tool for the Introductory Physics course and possibly others. Several physical concepts can be demonstrated. Wavelength, frequency, and velocity of individual waves can be measured. Other functions of position and time can be displayed. Travelling functions (functions of x-vt) can be examined. All of this in addition to superposition properties.