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Simple Machines

Simple Machines. http://www.fi.edu/qa97/spotlight3/spotlight3.html. Pulley. A pulley uses grooved wheels and a rope to raise, lower, or move a load. Mini Blinds. Crane. Flag Pole. Pulley. Pulley. Lever. A straight rod or board Turns on a point known as a fulcrum. Wheel Barrow. See-Saw.

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Simple Machines

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  1. Simple Machines http://www.fi.edu/qa97/spotlight3/spotlight3.html

  2. Pulley • A pulley uses grooved wheels and a rope to raise, lower, or move a load.

  3. Mini Blinds Crane Flag Pole Pulley

  4. Pulley

  5. Lever • A straight rod or board • Turns on a point known as a fulcrum.

  6. Wheel Barrow See-Saw Pull Tabs Door Hinge Lever

  7. Lever

  8. Wedge • A wedge is an object with at least one slanting side • It is an inclined plane that moves • It ends in a sharp edge • Cuts or splits material apart

  9. Scissors Axe Knife Wedge

  10. Wedge

  11. Inclined PLane • An inclined plane is a slanting surface • Inclined means slanted – like a ramp • It connects a lower level to a higher level

  12. Ramps Stairs Inclined PLane

  13. Inclined PLane

  14. Wheel and Axle • A wheel with a rod – called an axle • Lifts or moves loads • Some “wheels” of a wheel and axle don’t look like wheels • Doorknob or faucet handle

  15. Dump Trucks Door Knob Wagon Faucet Wheel and Axle

  16. Wheel and Axle

  17. Screw • An inclined plane wrapped around a shaft or cylinder.

  18. Spiral Staircase Bolts and Screws Screw

  19. Screw

  20. Comprehension Questions? • An axe is an example of a: a. Pulley b. Wedge c. Wheel and Axle • You would use a pulley to: • Cut food b. Hold pieces of wood together c. Help raise a flag • What is the name of a simple machine with a slanting surface? • The fixed point around which a lever turns is called a: a. screw b. fulcrum c. door knob • A pull tab on a soda can is an example of a: a. inclined plane b. screw c. lever

  21. Work Cited • Edheads:http - www.edheads.org/activities/simple-machines/ • Unitedstreaming - http://www.unitedstreaming.com • Findsounds - http://findsounds.com/ • CA Dept. of Education: http://www.cde.ca.gov/be/st/ss/scgrade3.asp • Mikids - http://www.mikids.com/Smachines.htm • Inventor’s Toolbox - http://www.mos.org/sln/Leonardo/InventorsToolbox.html • The Franklin Institute - http://www.fi.edu/qa97/spotlight3/spotlight3.html • Gettyimages - http://creative.gettyimages.com/source/classes/FrameSet.aspx?&UQR=sbmupa&pk=4&source=front&lightboxView=1&txtSearch=gears&selImageType=7&chkLicensed=on&chkRoyaltyFree=on&chkNLM=on

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