Here's a resource ideal for independent learners who need extra reinforcement or would like to work ahead. These textbook chapters and practice problems cover many basic physics concepts, starting with potential and kinetic energy and...

Test the limits of gravity while encouraging full class participation with this thrilling lesson. Pupils investigate the meaning of work and how it is equivalent to energy. They explore the joule and apply it as a unit of work. They...

This site from Georgia State University Physics Department defines and explains the concept of potential energy. Using equations and graphics to illustrate the idea, it discusses the many types of potential energy (gravitational,...

This site from Georgia State University Physics Department defines elastic potential energy and explains its origin. Provides an equation for computing elastic potential energy and an opportunity to practice solving problems with an...

This site defines and explains the concept of gravitational potential energy. Uses many equations and graphics to illustrate the idea. Provides an online computational practice set with immediate feedback.

The concept of potential energy is explained along with the two forms of potential energy: elastic and gravitational. Discusses what gravitational potential energy is, explains the direct relationship between it and mass and height, and...

This site from Georgia State University Physics Department defines kinetic energy and compares and contrasts it with other forms of energy. Provides an equation and links to further, more-detailed information.

This site from Georgia State University defines electric potential energy and relates it to the concept of electric potential. Discusses the idea of a reference point or a zero potential location.

This is a glossary of words and definitions of terms having to do with work, energy, and energy resources.

Understand and review energy concepts with this study guide.

This site is from the Physics Department at Georgia State University. The reliance upon the law of conservation of energy as an approach to problem-solving is presented and encouraged. It is modeled through a problem involving a...

Wikipedia provides detailed information on electrical potential, including a definition, introduction, and mathematical formulas.

This site from the Georgia State University explains the concept of electric potential about a point charge or combination of severat point charges. An interactive JavaScript form allows the visitor to investigate the effect of distance...

Defines electric potential, field lines, and equipotential lines. Contains example problems and formulas for solving.

From The Scots Guide to Electronics web site. The meaning of electric potential is described. A combination of diagrams and words are used to explain this difficult concept without the use of mathematics. Very well done!

Here is a presentation of Coulomb's Law and the electric field potential formula, with example problems.

At this site from the Georgia State University, the equipotential lines around several different configuration of charges are shown and described. Excellent graphics and clear discussion.

Electrical currents and voltage are defined and illustrated.

Information about the element, Thorium, atomic number 90. Covers physical properties, atomic properties, how abundant it is on the Earth, where it is found, and details about health-related regulations. Discusses thorium's potential use...

A rather mathematical explanation of a capacitor. Gives all the appropriate formulae, with many hotwords for further info.