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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

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