Oscillations and Waves offers a set of simulations showing how waves interact with the world. Here are numerous software models "to die for" that show the Doppler effect, damping and diffraction gratings. A-level physics teachers will want to use these as demonstrations or class activities.
The title offers something of a breakthrough in allowing you to get straight to the part you need without the usual garnish of multimedia frills.
Price pound;79.95 for single-user CD-Rom.
Fable Multimedia 0181 374 9008 www.fable.co.uk