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Simple Machines
Simple Machines ,[object Object]
Work & Machines ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mechanical Advantage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Inclined Plane ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Inclined Plane Examples
Wedge ,[object Object],[object Object],[object Object],[object Object],[object Object],In this picture, as the force moves the ax down, the load (wood) breaks  apart and falls to the sides.
Wedge Examples
Screw ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Screw Examples
Lever  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Three Classes of Levers
Levers  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lever Examples
Wheel & Axle ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Wheel & Axle Examples
Pulley ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pulley Systems ,[object Object],[object Object]
Pulley Examples
Efficiency ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],X 100%
Calculating Efficiency ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],X 100% X 100% = 30% efficient
Review ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Review ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Review Newton’s Laws Explanation Summary First Second Third

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Simple Machines

Notas do Editor

  1. Effort force acts on double the distance the load is raised = MA of 2 Effort force if half the weight of the load = MA of 2
  2. Overview only - next slide has more detailed explanation.
  3. First class levers: pop can, screw driver on lid, seesaw, catapult, pump handle Second Class: wheelbarrow, bottle cap, nut cracker Third Class: fishing pole, snow shovel, ice tongs/tweezers, chopsticks