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Work and Machines

Chapter 4 Vocabulary

TermDefinition
Force The cause of acceleration, for change in an objects velocity. Or Push or Pull
Fulcrum The point at which a lever is turned.
Input arm/distance The distance between the input force and the fulcrum.
Input force The amount of force that you put into another object.
Lever A rigid bar on a pivot point (fulcrum), used to help move a heavy or firmly fixed load with one end when pressure is applied to the other
Machine An object using or applying mechanical power performing a specific task.
Mechanical Advantage A number that describes how much easier a job is performed.
Output Force Is the force that is exerted from the input force to create motion of a resisting object.
Output Arm/Distance The distances from the output force to the fulcrum
Simple Machines Lever, pulley, wheel and axle, incline plane, wedge, and screw.
Created by: tanya.babik
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