Michigan State University
Michigan State University: Physics: Coulomb's Law
Here is a presentation of Coulomb's Law and the electric field potential formula, with example problems.
Concord Consortium
Concord Consortium: Electrostatics
Use a series of interactive models and games to explore electrostatics. Learn about the effects positive and negative charges have on one another, and investigate these effects further through games.
Orpheus Books
Q Files: Electricity and Magnetism: Electric Charge
Learn how electric charges work and about Coulomb's Law, which is used to calculate the strength of an electric force.
Physics Classroom
The Physics Classroom: Static Electricity Review
This review from the Glenbrook South High School provides a series of questions on various topics associated with static electricity (such as electrical insulation). Answers and explanations are hidden, yet easily accessed from within a...