Simple Machines Review

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A review of the simple machines we learned about.

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Simple Machines Review

  1. 1. Simple Machines
  2. 2. Table of Contents Kinds of Simple Machines What Kind of Simple Machine Is It? Our Simple Machine Hunt Fill in the Blanks Some Simple Machine Cartoons Simple Machine Websites
  3. 3. Kinds of Simple Machines <ul><li>A simple machine is a device that makes work easier. </li></ul><ul><li>Some examples of simple machines are: </li></ul><ul><li>Levers </li></ul><ul><li>Wheel and Axle </li></ul><ul><li>Pulleys </li></ul><ul><li>Inclined Plane </li></ul>
  4. 4. Inclined Plane <ul><li>An inclined plane is a slanted surface that makes it easier to move a heavy object. </li></ul><ul><li>You need less force to push an object up an inclined plane, but you move it a longer distance . </li></ul>Photo courtesy of Scholastic.com
  5. 5. Parts of an Inclined Plane <ul><li>Can you label the parts of the inclined plane below? </li></ul>load force inclined plane
  6. 6. Examples of Inclined Planes
  7. 7. Lever <ul><li>A lever is a long stiff bar that rests on a point called a fulcrum. The fulcrum does not move. </li></ul><ul><li>Force is put on one end of the lever. The other end lifts a load . </li></ul>Photo courtesy of Scholastic.com
  8. 8. Parts of a Lever <ul><li>Can you label the parts of the lever? </li></ul>load force lever fulcrum
  9. 9. Class 1 Lever
  10. 10. Class 2 Lever
  11. 11. Class 3 Lever
  12. 12. Pulleys A pulley is a wheel with a groove that holds a rope or a chain. A person holds one end of the rope. This force lifts the load on the other end. Photo courtesy of Scholastic.com
  13. 13. Parts of a Pulley <ul><li>Can you label the parts of a pulley? </li></ul>wheel rope force load
  14. 14. Examples of Pulleys
  15. 15. Which simple machine is it? <ul><li>Look at the pictures below and decide what kind of simple machine it is.Click to reveal the answer. </li></ul>pulley lever inclined plane
  16. 16. Our Simple Machine Search <ul><li>We went on a simple machine hunt in school and found many simple machines. </li></ul><ul><li>On the following slides are pictures of the ones we found. </li></ul><ul><li>Click on the slide to reveal what type of simple machine it is. </li></ul>
  17. 17. wheel and axle
  18. 18. lever
  19. 19. inclined plane or wedge
  20. 20. pulley
  21. 21. lever
  22. 22. lever
  23. 23. inclined plane
  24. 24. wheel and axle
  25. 25. pulley
  26. 26. lever
  27. 27. wheel and axle
  28. 28. inclined plane
  29. 29. lever
  30. 30. wheel and axle
  31. 31. pulley
  32. 32. inclined plane
  33. 33. wheel and axle
  34. 34. pulley
  35. 35. lever
  36. 36. <ul><li>The steeper the inclined plane is, the (more,less) force is needed to push the object. </li></ul>Fill in the blanks A pulley can move items(up, down, sideways. The (closer, farther) the load is to the fulcrum, the easier it is to lift it. closer up sideways more down
  37. 37. Some Simple Machine Cartoons <ul><li>You wouldn’t think simple machines are funny, but look at the following cartoons and you just might change your mind. </li></ul>
  38. 43. Some Great Websites <ul><li>http://pbskids.org/zoom/games/goldburgertogo/index.html </li></ul><ul><li>http://www.cosi.org/files/Flash/simpMach/sm1.swf </li></ul><ul><li>http://www.edheads.org/activities/simple-machines/ </li></ul><ul><li>http://www.mikids.com/Smachines.htm </li></ul>
  39. 44. <ul><li>Created by: </li></ul><ul><li>Julie Foster </li></ul><ul><li>Stone Harbor Elementary School </li></ul><ul><li> 2009 </li></ul>

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