physics forces and motion

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  • Created by: maxullman
  • Created on: 19-12-14 11:42
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  • Forces and Motion
    • Mass,Weight and Gravity
      • gravity it gives everything a weight
      • gravity keeps satellites in orbit
      • mass is the amount of stuff in the object and its the same anywhere in the universe
      • weight is caused by the pull of gravity
      • weight is measured in newtons
      • mass is measured in kilograms
      • weight = mass X gravitational feild strength or W = M X G
    • Forces and Friction
      • 1. gravity or weight acting straight downwards
      • 2. reaction force from a surface usually acting straight up
      • 3. electrostatic force direction depends on charge
      • 4. thrust push or pull speeding something up
      • 5. drag air resistance or friction slows down
      • 6. lift
      • 7. tension


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