G07: Physics Forces & Motion: Simple Machines

WHAT ARE SIMPLE MACHINES?
Simple machines make work easier. They have few or no moving parts and they work by changing the direction of a force or the amount of force needed to do something.

In physics, a simple machine is any device that requires the application of only one force in order to perform work. Work is the product of the force applied and the distance moved due to the force. Most authorities list six kinds of simple machines: levers, pulleys, wheels and axles, inclined planes, wedges, and screws. One can argue, however, that these six machines are not entirely different from each other. Pulleys and wheels and axles, for example, are really special kinds of levers, and wedges and screws are special kinds of inclined planes.

Go to www.getepic.com/students
Enter class code
Select your name