5th grade Ch. 13 Lesson 4 what are simple machines
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5th grade Ch. 13 Lesson 4 what are simple machines

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5th grade Ch. 13 Lesson 4 what are simple machines Presentation Transcript

  • 1. Ch. 13 Lesson 4 What are simple machines?
  • 2.  
  • 3. machine
    • device that changes the direction or the amount of force needed to do work
  • 4. 6 kinds of
  • 5. inclined plane
    • slanting surface that connects a lower level to a higher level
  • 6. inclined plane
  • 7.  
  • 8. screw
    • inclined plane wrapped around a center post
  • 9. screw
  • 10.  
  • 11. wedge
  • 12.  
  • 13.  
  • 14. lever
    • stiff bar that rests on a fulcrum
  • 15. lever
  • 16. lever
  • 17. wheel and axle
    • ex: doorknob
    • wheel =knob
    • axle =post that attaches to its center
  • 18. wheel and axle
  • 19.  
  • 20.  
  • 21. pulley
    • changes the direction of motion to which a force is applied
  • 22. pulley
  • 23. complex machine- made of more than 1 simple machine
  • 24. complex machine
  • 25. Edheads -Simple Machines
  • 26. Simple Machines Game
    • Simple Machines game
    • http://staff.harrisonburg.k12.va.us/%7Emwampole/1-resources/simple-machines/index.html
    • http://sunshine.chpc.utah.edu/javalabs/java12/machine/index.htm
    • http://www.galaxy.net/~k12/machines/index.shtml
    • http://www.quia.com/pages/hostetterscience.html#simple
    • How can we move our principal game