These web pages, authored and curated by David P. Stern, provide an explanation of forces in accelerating reference frames. Topics include centrifugal force and what is felt in vehicles that are speeding up or slowing...

This course is one of the quickStep series offered by Siemens in AC Drives. These are FREE on-line industrial knowledge building tutorials. quickSTEPs are a great start for industry novices moving into technical jobs or...

This webpage is simply an active calculator of buoyancy. It allows changes in mass, apparent mass, volume or density to explore variations. This site would be an excellent resource for any biology, chemistry or physics...

This activity describes the basic structure of an atom using an edible model and explains the quantum mechanical nature of the atom. For example, originally, each electron orbital was pictured as having a specific...

In this interactive simulation, the path of a charged particle in a capacitor can be traced. Users may adjust the strength of field, initial velocity and mass of the moving particle, and magnitude of its charge. The...