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6 Written questions

5 Multiple choice questions

  1. motion
  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. coefficient of friction
    normal force
  4. a 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
  5. friction that acts on an object sliding across a surface

5 True/False questions

  1. Fluid Friction(such as air resistance)
    friction acting on an object as it moves through a fluid(air, water, etc.)


  2. Net force and Accelerationdirect
    one increases the other increases


  3. Equilibriumno net force
    no acceleration


  4. Net ForceThe net force on an object is equal to the product of the mass of the object and its acceleration
    More EF=more acceleration
    if mass was increased acceleration would decrease


  5. Normal force calculatedFg=mg