Definition of simple machine
: any of various elementary mechanisms formerly considered as the elements of which all machines are composed and including the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw
First Known Use of simple machine
SIMPLE MACHINE Defined for Kids
Definition of simple machine for Students
: one of the fundamental devices that all machines were formerly thought to be made from <The lever, axle, pulley, inclined plane, wedge, and screw are the classic simple machines.>
Seen and Heard
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