Kinematics in 2-d game.
http://library.thinkquest.org/2779/Balloon.html
http://www.mhhe.com/physsci/physical/giambattista/proj/projectile.html
http://library.thinkquest.org/16600/games/bball/
Vectors
http://library.thinkquest.org/16600/games/vectadd/
http://library.thinkquest.org/16600/games/vectors/
http://library.thinkquest.org/16600/games/orbit/
Pendulums
http://library.thinkquest.org/16600/games/pendulum/
Optics
http://www.falstad.com/mathphysics.html
http://dev.physicslab.org/asp/applets/opticsbench/default.asp
Waves
http://id.mind.net/~zona/mstm/physics/waves/interference/intrfrnc.html
http://id.mind.net/~zona/mstm/physics/waves/standingWaves/standingWaves1/StandingWaves1.html
http://webpages.ursinus.edu/mtakats/gifcat/wavedemo.html
http://mysite.verizon.net/vzeoacw1/wave_interference.html
Fun
http://www.markfennell.com/flash/snake/