Simple Machines

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Here is an overview about simple machines: http://player.discoveryeducation.com/index.cfm?guidAssetId=8e0ce310-4bd8-46ed-85e2-269c1cecc21b&productcode=HUB&CFID=58027289&CFTOKEN=42860628
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Full list of words from this list:

words only definitions & notes
  1. lever
    a simple machine giving a mechanical advantage on a fulcrum
  2. pulley
    a wheel with a groove in which a rope can run
  3. wedge
    something solid that can be pushed between two things
  4. screw
    a simple machine with a threaded cylindrical rod and hole
  5. inclined plane
    a simple machine for elevating objects
  6. block and tackle
    pulley blocks with associated rope or cable
Created on 三月 9, 2010 (updated 三月 9, 2010)

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