This website, authored by Fu-Kwun Hwang of the National Taiwan Normal University, contains an applet on circular motion. The simulation portrays a ball on a string swinging in a circle. The radius of the circle and the...

This lesson plan, authored and curated by David P. Stern, introduces the concept of energy through the ideas of conservation and the ability to run machines. A series of both qualitative and quantitative examples are...

New physics teaching resource sites continue to pop up every day, and this one from the University of Minnesota's Physics Education Research Group is a good find. The site is divided into two areas, one covering...

This series of web pages, authored and curated by David P. Stern, gives an elementary discussion of cosmic rays, followed by sections on high energy particles in the universe and high-energy particles from the Sun. It...

This resource, created by Dean Zollman of Kansas State University, discusses light emitting diodes and the role of energy (band) gaps. It also discusses the effects of impurities. The resource has contains information on...