Simple Machines

Sharon H.
10 words 16 learners

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Full list of words from this list:

words only definitions & notes
  1. simple machine
    a device for overcoming resistance at one point by applying force at some other point
    Simple machines are simple tools used to make work easier.
  2. wheel and axle
    hoist so arranged that a rope unwinding from a wheel is wound onto a cylindrical drum or shaft coaxial with the wheel
    Wheel and Axle
    The rotation of the lever against a point pries objects loose.
  3. inclined plane
    a simple machine for elevating objects
    Inclined Plane
    A plane is a flat surface.
  4. do work
    be employed
    Furniture movers do work when they move boxes.
  5. pulley
    a wheel with a groove in which a rope can run
    Pulley
    Instead of an axle, the wheel could also rotate a rope or cord.
  6. wedge
    something solid that can be pushed between two things
    Wedge
    Instead of using the smooth side of the inclined plane, you can also use the pointed edges to do other kinds of work.
  7. lever
    a simple machine giving a mechanical advantage on a fulcrum
    Here's extra information
    Lever
    Try pulling a really stubborn weed out of the ground.
  8. screw
    a simple machine with a threaded cylindrical rod and hole
    Screw
    Now, take an inclined plane and wrap it around a cylinder.
  9. machine
    a mechanical or electrical device that transmits energy
    A machine is a tool used to make work easier.
  10. fulcrum
    the pivot about which a lever turns
    A lever is an arm that "pivots" (or turns) against a "fulcrum" (or point).
Created on Fri Nov 12 14:59:03 EST 2010 (updated Fri Nov 12 15:02:00 EST 2010)

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