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# Unbalanced Forces

### 8.6A

TermDefinition
Force A push or a pull that can change the motion of an object
Balanced Forces Forces on an object that do not change the motion of an object.
Unbalanced Forces Forces on an object that cause change in the motion of the object.
Net Force The sum of all the forces acting on an object.
At Rest The state of an object when it is not in motion.
Motion The change in an object's position with respect to time amd in comparison to the position of other objects used as reference points.
Speed The measurement of the rate of change of position with respect to time.
Direction The path that an object is moving or facing.
Friction A force between two surfaces rubbing against each other that works against motion.
Acceleration Change of an object's speed or direction
Velocity Measurement of speed and direction of an object.
Frame of Reference A system that uses coordinates or background objects to establish position or measure movement of a point in space.
Created by: poolesa
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