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# Science Levers

### Levers & Pulleys

Lever with the load in the center Class 2 Lever
Lever with the effort in the middle Class 3 Lever
A drawing that shows the relationship of the parts of the system Diagram
A wheel with a grooved rim in which a rope can run to change direction of the force to lift a load Pulley
Wheel attached to something above the load Fixed Pulley
A wheel that is attached to the load Moveable pulley
A tool that makes work easier Lever
The point around which the lever arm pivots Fulcrum
A stick or beam free to pivot at a point Lever Arm
Mass lifted by lever arm Load
The force (pull or push) needed to lift the load Effort
The amount of material that makes up an object Mass
Shows a relationship between two variables The two coordinate graph
Unit used to measure force in the metric system Newtons
Lever with fulcrum in the center Class 1 Lever
Changes the direction that effort is applied Directional Advantage
Created by: Mumble

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