Science Struck
Science Struck: Static Friction vs. Kinetic Friction: The Differences
Teaches what friction force is, the difference between static and kinetic friction, and how friction force is calculated.
University of Alaska
University of Alaska Fairbanks: Static and Kinetic Friction
Explains what static and kinetic friction are, what their coefficients of friction are in different scenarios, and how these concepts are applied when looking at automobile braking distances and vehicle control when driving.
Science4Fun
Science4 Fun: What Is Friction
What is friction? Illustrated discussion of friction including the three types, its importance, and why it is avoided.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Sliding Down an Incline Plane
Here is a simulation demonstrating an object placed on an inclined plane. The user will vary the slope of the plane to see the relationship the slope has on the gravity of the object and the static friction.
University of St. Andrews (UK)
University of St. Andrews: Charles Augustin De Coulomb
A large complete authoritative biography of Coulomb. Five large pictures, over a dozen links to contemporaries, references, a poster, other mathematicians. A fine source.
Science Struck
Science Struck: A Comprehensive List of All the Physics Formulas
Provides a long list of physics formulas for easy reference.
Wikimedia
Wikipedia: Charles Augustin De Coulomb
Spanish-language site lets students discover the life and work of this physicist and engineer, who is known for his studies of electric charges.
Rudiments of Wisdom
Rudiments of Wisdom: Science
Browse this index to find fun, hand-drawn cartoons that simplify and explain many science topics, including atmosphere, evolution, fusion, static electricity, and time. Cartoons are created by engineer-turned-cartoonist, Tim Hunkin,...