I thought I’d be a sport and share some of my physics animations that I make for my Phys101 lectures. Most of them are about mechanics and waves so far, but there should be optics and E&M animations coming soon. You can find them here: Physics Animations If you would like to use them in your own class, go ahead. If you have any brilliant ideas for some cool animations that might be useful, let me know.
Here’s an example of a simple oscillating spring.