chapter 8 terms

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  1. Speed
    distance traveled divided by the time interval during which the motion occurred
  2. Velocity
    quanity decribing both speed and direction
  3. Momentum
    a quantity defined as the product of an object's mass and its velocity
  4. Acceleration
    change in velocity divided by the time interval in which the change occurred
  5. Force
    the cause of acceleration, or changein an object's velocity
  6. Balanced Forces
    forces acting on an object that combine to produce a net force equal to zero
  7. Unbalanced Forces
    forces acting on an object that combine to produce a net nonzero force
  8. Friction
    the force between two objects in contract that opposes the motion of either object
  9. Gravity
    the force of attraction between two particles of matter due to their mass
  10. Inertia
    the tendency of an object to remain at rest or in motion with a constant velocity
  11. Free Fall
    the motion of a body when only the force of gravity is acting on it
  12. Terminal Velocity
    the maximum velocity reached by a falling object that occurs when the resistance of the medium is equal to the force due to gravity
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chapter 8 terms
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