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3rd Grade Simple Machines

This is a review created by JBN School for our simple machines unit.
AB
leverseesaw
wheel and axlebicycle
inclined planeramp
pulleycrane
wedgedoorstop
screwnut and bolt
fulcrumpivot point
forcepush or pull on an object
workmovement as a result of force
machinesdevices that help do work
loadobject to be moved
effortforce needed to move load
frictionwhen 2 surfaces rub on each other
axleshaft inserted into the center of a wheel
tractionfriction that is beneficial to accomplishing work
geartoothed wheel
simple machineseveryday objects that do work

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