Mechanisms Simple Machines Lever, Wheel and Axle, & Pulley.
Instructional Guide Technological Systems: Creating Mechanical Toys .
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Simple Machines. The Six Simple Machines Device that changes the magnitude or distance of a single applied force. Lever Wheel and Axle Pulley.
Classification of simple machines: Simple machines are divided into two families: 1)The Lever family and 2) The inclined plane family The Lever family.
