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Balanced and Unbalanced Force
•http://www.youtube.com/watch?v=DWCor34PzAw
What is a force?
• A force is a push or pull that causes an object to move, stop, or change direction
• In physics a force is anything that makes an object accelerate
Balanced and Unbalanced Forces
• Forces occur in pairs and they can be either balanced or unbalanced
Unbalanced ForceBalanced Force
• Unbalanced Force can cause an object to move, stop moving, or change direction.
• The balanced forces are the forces in equal and opposite directions.
• The balanced forces are the forces in equal and opposite directions.
Balanced Forces
• Balanced forces do not cause change in motion• They are equal in size and opposite in direction• If your calculations result in zero, then its
balanced.
Unbalanced Forces
• An unbalanced force always causes a change in motion
• When unbalanced forces act in opposite directions you can find the net force– Net force
• Magnitude– The difference between the two forces
• Direction– Direction of the largest force
Phet Simulation
• http://phet.colorado.edu/en/simulation/forces-and-motion-basics