Welcome to practical physicsPracticle physics - practical activities designed for use in the classroom with 11 to 19 year olds
 

Using wave simulations

There are many excellent applets available on the Internet that show wave behaviour as if observing a ripple tank or oscilloscope screen. These cannot substitute for experience of the phenomena themselves but provide a powerful way of helping students to visualize. They provide a valuable complement to experiments by removing extraneous effects. 
 
See examples on the ISVR website.