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Ch16 Scott Foresman

4th Grade Science

QuestionAnswer
long bar with a support lever
the support on which a lever rests fulcrum
the weight to be lifted or moved load
a simple machine with slanted threads along its sides screw
a special inclined plane used to split things or move things or hold things in place wedge
a ramp used to move things up or down inclined plane
a wheel and a rod joined to the center of the wheel. it is used to move or turn objects wheel and axle
a wheel with a rope, wire or chain around it. Pulley
the force used on a simple machine effort
One or more simple machnes combined together complex machines
Created by: czeponis
Popular Physical Science sets

 

 



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