CK-12 Foundation
Ck 12: Physical Science: Mechanical Advantage
[Free Registration/Login may be required to access all resource tools.] Actual and ideal mechanical advantage, how to calculate them and the mechanical advantage of different types of machines.
TeachEngineering
Teach Engineering: Simple Machines
Through a five-lesson series with five hands-on activities, students are introduced to six simple machines - inclined plane, wedge, screw, lever, pulley, wheel-and-axle - as well as compound machines, which are combinations of two or...