A simple machine is a mechanical device that changes the direction or magnitude of a force.  In general, they can be defined as the simplest mechanisms that use ...
make work easier for us by allowing us to push or pull over increased distances. There are SIX simple machines:
simple machine n. Any of numerous basic devices that alter the magnitude or direction, or both, of an applied force, traditionally including the lever, wedge ...
Simple Machines is a science game for students in grades 2 – 6 to identify simple machines around the house, and simple machines that make up compound machines in ...
Simple Machines for Kids - Interesting videos, lessons, quiz games, interactive diagrams, presentations and activities on simple machines.
What is a simple machine? Simple machines are tools that make work easier. They have few or no moving parts. These machines use energy to work.
Simple Machines: Facts. Once upon a time a person needed to move something heavy. ... And the first simple machine was invented. Simple machines are just that.
Individually, each of these machines is a simple machine. When two or more simple machines are combined in such a way that they work as a single mechanism, ...
noun 1. a simple device for altering the magnitude or direction of a force. The six basic types are the lever, wheel and axle, pulley, screw, wedge, and inclined plane
In this free online science game, students use found objects in a museum to create simple machines that use a minimum of force.