Simple Machines

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Simple Machines

  1. 1. Simple Machines THE PULLEY THE SCREW THE LEVER THE WHEEL & AXLE THE INCLINED PLANE THE WEDGE
  2. 2. HISTORY What do you think was the first Simple Machine??? Just remember every time you use a tool to do work you are using a simple machine. It can be a repair tool, gardening tool, kitchen tool, or tools you use to play games like croquet or baseball.
  3. 3. Probably it was a large stick used to move heavy objects – like rocks. And the LEVER was born! FACT
  4. 4. LEVERS
  5. 5. FACT Or was it a sharp rock used to scrape animal skins???? The WEDGE FACT
  6. 6. FACT Logs were used in early modern building to move huge rocks by rolling them along. These logs became WHEEL & AXLE around 3000 B.C., and were one of the most important inventions in history. FACT
  7. 7. The INCLINED PLANE and Rollers were used in building the Great Egypt Pyramids (one of the 7 Wonders of the World). 2.5 million limestone blocks (weighing 2 to 70 tons each) were moved hundreds of miles over 20 years. Ramps over one mile long were needed to place stones. FACT
  8. 8. The LEVER , ROLLERS , and PULLEYS were used to build Stonehenge, England. FACT
  9. 9. Throughout all the early civilizations, including Lebanon, Peru, Bolivia, and Easter Island – simple machines were used to build magnificent buildings. In Lebanon, temples were built with blocks 64 feet long and 13 feet wide, weighing 1200 tons apiece. A force of 25,000 men was required to raise one stone. FACT The LEVER , PULLEYS , WEDGES , and the SCREW were all used early in history FACT
  10. 10. Many ancient machines were in common use in Da Vinci’s time. For example, water wheels turned millstones to grind grain and Archimedes' screws lifted water from streams providing a ready supply for drinking and washing. FACT

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