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Physical Science 5

Force X Distance
Your forearm is a ____ class lever
Pivot point for a lever
This must have a fulcrum
Machine that puts out as much work as is put in
A teeter-totter is a ___ class lever
(2 words) A ramp
A wheelbarrow is a ___ class lever
Wheel and _____
This is always needed to do work
Work / Time
Wheels with cogs
An axe is an example
Unit used for work
Can be fixed or moving
_____ advantage
A ____ machine is 2 or more simple machines combined
Unit used for force
Some machines change the ____ of a force
____ machines include levers, pulleys, etc
Unit used for power
Inclined plane wrapped around a cylinder