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Simple Machines loading

Introduction to six different devices that make work easier by changing a force.

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Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
  • Video
    Simple Machines

    Simple Machines

    by CK-12 //basic
    Learn about simple machines and what makes them work - some amplify force, some change its direction, and some reduce friction or create mechanical advantage. Covers the lever, wheel and axle, pulley, inclined plane, wedge, and screw.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Real World Application
    Building Coral Castle

    Building Coral Castle

    by CK-12 //basic
    Discover how an amazing structure in Florida, called Coral Castle, was built by a single person using only simple machines.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Real World Application
    Human Levers

    Human Levers

    by CK-12 //basic
    Find out how muscles and bones in the human body work together as simple machines called levers.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Real World Application
    Wonderful Wedges

    Wonderful Wedges

    by CK-12 //basic
    Discover how wedges work and some of the many uses of these simple machines.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Real World Application
    The Amazing Wheel

    The Amazing Wheel

    by CK-12 //basic
    Learn the history of the wheel and axle and why it has been called one of the most important inventions of all time.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Real World Application
    Screw Ups and Downs

    Screw Ups and Downs

    by CK-12 //basic
    Discover how screws help us do work and some of the many real-world uses of screws.
    MEMORY METER
    This indicates how strong in your memory this concept is
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