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6 Written questions

5 Multiple choice questions

  1. inverse
    One increases the other decreases
  2. roughness or smothness of surfaces
    if both surfaces are rough then it will be high
    if both surfaces are smooth then it will be low
  3. no net force
    no acceleration
  4. friction that acts on an object sliding across a surface
  5. motion

5 True/False questions

  1. Normal force calculatedFg=mg


  2. Factors influencing kinetic frictioncoefficient of friction
    normal force


  3. Terminal Velocitythe velocity of a falling object when it has enough air resistance to cancel out its weight
    an object at terminal velocity is in dynamic equilibrium


  4. Net force and Accelerationdirect
    one increases the other increases


  5. Newton's 2nd law of motiona net force on an object produces an acceleration on that object that is directly proportional to the net force and inversely proportional to its mass


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