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# Simple Machines Review

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A review of the simple machines we learned about.

Published in: Education, Business, Technology
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• Thanks for this great contribution

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• The pulley in the last comic actually wouldn't work as the pulley illustrated by the comic doesn't provide a force advantage... (Quibble quibble...) They are all great comics though and thank you for sharing!

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• I am so much happy for your kindly information.

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• Thank you sir.

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• this was a good help for my simple machines project!!

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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>