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Balanced Forces

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  • A box has 15 N right and 15 N left. What is the resultant force?
    0 N
  • What is resultant force?
    The total force acting on an object
  • Is a 0 N resultant force balanced or unbalanced?
    Balanced
  • What happens when forces are unbalanced?
    The object’s motion changes
  • What is a force?
    A push or a pull
  • If an object is not moving
    are there forces acting on it?
    Yes
    but they are balanced
  • Why is a person sitting on a chair balanced?
    Upward force equals downward gravit
  • Give one example of a pull force
    Pulling a rope
  • Calculate: 20 N – 10 N
    10 N
  • What happens when forces are equal and opposite?
    They are balanced
  • Calculate: 10 N + 20 N
    30 N
  • Do forces have direction?
    Yes
  • Give one example of a push force
    Pushing a door
  • What is friction?
    A force that opposes motion
  • What happens when forces are balanced?
    They cancel out and do not change motion
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