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Forces

Forces. What is a Force? Push or Pull What does it do? Causes Motion How do we describe it? Size (magnitude) Direction. What are the 7 simple machines?. Lever Inclined Plane Wedge Screw Wheel and Axle Gear

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Forces

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  1. Forces What is a Force? Push or Pull What does it do? Causes Motion How do we describe it? Size (magnitude) Direction

  2. What are the 7 simple machines? • Lever • Inclined Plane Wedge Screw • Wheel and Axle Gear Pulley

  3. Why do we use simple machines? • To make life easier! • Simple Machines change forces: change the direction change the size change both

  4. How do they work? • Conservation of Energy Work and Energy are related • Scientific Definition of Work Work = Force x Distance distance in direction of force

  5. Lever

  6. Incline Plane

  7. Wedge

  8. Screw

  9. Wheel and Axle

  10. Gears

  11. Pulley Change Force Direction Same Force Size

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