The 6 Simple Machines
Pulley 
Wedge
Wheel and Axle
Lever
Inclined Plane
Screw
Reduces amount of effort needed
Parts
Effort
Load
Pivot
Lever arm
Examples
Wheelbarrows, scissors, pliers, and shovels
Class System
1st class - fulcrum is located in the middle of effort and load
2nd class - load is located in middle of of the fulcrum and effort
3rd class - the effort is located
in the middle of fulcrum and load
Used to transmit energy and motion
Parts
Wheel and axle
Load
Effort
Examples
Well, window blinds, and elevator
Types
Fixed - pulley attached to fixed point
Moveable - pulley is free to move up and down
Block and Tackle - system of two or more pulleys
Compound - combo of fixed pulley and moveable pulley
Used to split, lift and tighten
Parts
Two inclined planes
Thin and thick end
Examples
Axe, zipper, and knife
Triangular shaped tool
Applies force to lift or move
Parts
Wheel
Axle
Examples
Rigidly connected
Ferris Wheel, bike, and electric fan
Types
Type #1 - Force applied to Wheel
Type #2 - Force applied to Axle
Pizza cutter & windmill
Car tires & bikes
Converts rotational motion into linear motion
Drills holes into objects
Holds things together
Lifts heavy loads
Force is applied to the vertical edge (height)
Smaller angle = more force generated
Greater angle = less force generated
Parts
Shaft
Pitch
Thread
Tip
Wider thread = looser hold
Closer thread = stronger hold
Examples
Light bulb & bottle caps
Using less effort to move something from a lower height to a higher height
Gentle slope = less force, more distance
Steep slope = more force, less distance
Examples
Slide, ramp, & roof
FLE - 123
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