Thought I might create a page with some of the (free) online Physics resources I’ve used in class. This is basically a personal resource that I’m making public since it might benefit others. Leave a comment if you notice any of these links have stopped working. I plan to add to the list over time, and categorize it once is gets larger.
Brief explanation of the Michelson-Morley experiment.
Basic Wave Interference Applet
What it sounds like.
Very basic Phet applet.
Allows you to vary the frequency of two different waves and shows you the resulting wave.
Cavendish Experiment Video
Video of the Cavendish Experiment with some groovy music. Some of the commenters are worried the attraction is actually due to static charges and not gravity – I don’t know. Makes the point anyway. Talk about static charges too!
Doppler Effect for Moving Source
A simple little applet that shows the pileup of waves created by a moving source.
Doppler Effect: The Big Bang Theory
Passed on to me by a student. Use at your own risk!
EM Spectrum Chart
EM Wave Graphic
Projectile Motion Applet
Allows you to virtually launch projectiles at different angles, speeds, and masses, with and without air resistance. We use it as part of a virtual projectile motion lab – especially with hybrid/online courses, but sometimes with “normal” courses too.
Nice little applet that helps to illustrate why waves bend when parts of the wave front are traveling at different speeds.
This is a very simple program you download that simply allows you to play a sound from your computer at a frequency you set. I use it for a beat demo – a tuning fork is one source of sound, a computer is the other. I can also vary the frequency of one of the sound sources this way.
Some helpful gifs showing how the medium moves in longitudinal, transverse, water, and surface waves.
Wave on a String
I use this to show standing waves forming – the default settings will work if you turn off damping.
Has a gif showing reflection from an impedance boundary, and others.