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Simple Machines, Power and Work

Simple Machines, Power and Work. In Your Notes. What is a Simple Machine?. Simple: easy to understand; not complex Machine: a device that transfers force or motion Simple Machine: Any of the following six devices: pulley, lever, inclined plane, wedge, screw, and wheel and axle. Pulley.

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Simple Machines, Power and Work

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  1. Simple Machines, Power and Work

  2. In Your Notes

  3. What is a Simple Machine? • Simple: easy to understand; not complex • Machine: a device that transfers force or motion • Simple Machine: Any of the following six devices: pulley, lever, inclined plane, wedge, screw, and wheel and axle

  4. Pulley • Uses grooved wheels and a rope to raise, lower, or move a load

  5. Lever • A stiff bar that rests on a fulcrum which lifts loads

  6. Inclined Plane • A slanting surface that connects a lower level to a higher level

  7. Wedge • An object with at least one slanting side and a sharp edge, which cuts material apart

  8. Screw • An inclined plane that wraps around a pole, which holds material together or lifts materials

  9. Wheel and Axle • A wheel with a rod, called an axle, that lifts or moves materials

  10. All Six Simple Machines Discuss with your partner other examples of simple machines in action

  11. Work • A force that acts on a body, causing a displacement. • Work=Force x Displacement • Work is measured in joules

  12. Power • Amount of energy consumed in time • Power = Work/Time • Power is measured in watts

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