Pulleys and Gears
Bill Nye - Simple Machines
Bill Nye - Simple Machines
This video has information about several types of simple machines. Focus your learning on pulleys and gears!
Fun Science Demos - The Pulley.
Fun Science Demos - The Pulley.
Jared describes how pulleys can make work easier.
Our World: How Gears Work
Our World: How Gears Work
This NASA video discusses gears and how they work together as a simple machine.