Hey today in my wiki we will be talking about how balanced and unbalanced forces are different.

Motion or the lack of motion determines whether a pair of forces is balanced or unbalanced. Force on its own is simply a push or a pull that causes an object to start or stop moving or change its motion.

A balanced force can best be described as forces that are equal in size and opposite in direction. A balanced force does not cause a change in motion.

Example of Balanced Force:

When two people that are about the same size arm wrestle each other, there is a point that both are pushing as hard as they can but the arms stay in one place. The amount of force used by each person is equal and opposite in direction. The resulting force is zero and there is no change in motion. This is known as a balanced force.

Unlike balanced forces, an unbalanced force always causes a change in motion. They are not equal. Unbalanced forces can be exerted in opposite directions or in the same direction.

Example of Unbalanced Force:

When one average person arm wrestles with a body builder, the body builder exerts much more force than the other person. The weaker person's arm will move in the direction the body builder is pushing. It will move with a force that is equal to his force minus the weaker person's force.

When working with balanced and unbalanced forces, it is important to remember that forces in the same direction combine by addition and forces in opposite directions combine by subtraction.

So just to sum it up, the difference between a balanced force and an unbalanced force is simply a difference in motion. Balanced forces will not cause a change, but unbalanced force will cause a movement of some kind. Thank you for taking the time to look at and read my wiki about forces.

Westbroek, Glen. "Balanced and unbalanced forces." Utah State 8th Grade Integrated Science Core Curriculum Page. Glen Westbroek, 7 Aug. 2000. Web. 3 May 2010. <http://schools.utah.gov/curr/science/sciber00/8th/forces/sciber/forces.htm>.

"Newtons First Law of Motion." the Physics Classroom. Web. 4 May 2010. <http://www.physicsclassroom.com/Class/newtlaws/u2l1d.cfm>.