A webpage with equations and examples of how to solve inclined planes problems. Learn how to deal with slopes when surfaces usually aren't perfectly horizontal.

In this lesson summary review and remind yourself of the key terms and calculations used in measuring unemployment, the labor force, the unemployment rate, the labor force participation rate, and the natural rate of unemployment. Topics...

Animation of the single-block "Earthquake Machine" model shows how "Forces, Faults, and Friction" interact. [0:16]

Students must determine the force of friction on a car on a turn and the maximum speed the car could navigate a turn.

Demonstrate inertia by pushing a nickel out of the bottom of a stack without disturbing the rest of the stack.

Students work in teams to investigate how aerospace engineering relates to sports, especially golf ball design and the physics of bounce. They use this information to determine whether these aerospace principles can be applied to...

This lesson focuses on electric charges. Electric current is the flow of electric charge. Some insulating materials become electrically charged when they are rubbed together. A substance that gains electrons becomes negatively charged,...