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...

Created by Edward Kluk of Dickinson State University, this web site provides course materials for an introductory mechanics class. Topics covered include: kinematics, forces, energy, and momentum. Each page features a...

This website provides free access to 22 interactive science labs with downloadable simulations for use in grades 4-9. Half of the simulations are related to Astronomy and half pertain to general topics such as simple...

This website allows students to design a simple roller coaster, and it then evaluates the roller coaster based on physical principles such as potential energy and circular motion. It rates the roller coaster on safety...

This is an English translation of the 1905 article by Albert Einstein that establishes the relation between the mass and energy of a particle. The article was published in the book The Principle of Relativity and...