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Simple Machines

Simple Machines. Anna Ward James Martin MS. Do Now!!!!. Using BRAINS, please read the article provided. This is for a grade. I will be looking to see if you completed each step. Announcements. Six days to EOGs Expectations for Science class Agenda. Simple Machines.

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Simple Machines

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  1. Simple Machines Anna Ward James Martin MS

  2. Do Now!!!! • Using BRAINS, please read the article provided. This is for a grade. I will be looking to see if you completed each step.

  3. Announcements • Six days to EOGs • Expectations for Science class • Agenda

  4. Simple Machines • http://www.brainpop.com/technology/simplemachines/levers/

  5. What is a simple machine? • Simple machines: One of the basic machines on which all other mechanical machines are based.

  6. Why do we use machines? • Mechanical Advantage: The number of times a machine multiples the input force; output force divided by input force.

  7. There are six types of simple machines: • The Wedge • the Inclined Plane (ramp), • The Screw • The Lever • The Pulley • The Wheel and Axle

  8. The Wedge • A wedge is an object with at least one slanting side ending in a sharp edge, which cuts material apart.

  9. The inclined plane • An inclined plane is a slanting surface connecting a lower level to a higher level.

  10. The Screw • A screw is an inclined plane wrapped around a pole which holds things together or lifts materials.

  11. The Lever • A lever is a stiff bar that rests on a support called a fulcrum which lifts or moves loads.

  12. The Pulley • A pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load.

  13. The Wheel and Axle • A wheel and axle is a wheel with a rod, called an axle, through its center lifts or moves loads.

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