Unbalanced Forces
Unbalanced forces are forces that can cause still objects to move, or moving objects to stop, slow, accelerate or change direction.
Above is a diagram demonstrating unbalanced forces on a truck. A smaller force is acting upon the front of the truck, and a larger force is acting upon the tail. The truck is accelerating in the direction of the small force. These two forces of unequal proportions are unbalanced.
Some examples of unbalanced forces include:
- If you kicked a still soccer ball, you would be causing a balanced object to move, thus creating an unbalanced force.
- If you slid a book across the floor of the room, but a person kicked it out of the way, changing it's direction, you would be creating an unbalanced force to act upon the book, as you have changed the balanced forces' direction.
- If you bounced a ball onto the ground and let it bounce back up again, but another person catches it mid air, an unbalanced force would be acting upon the ball, because they have made a balanced force stop.
This is a great example of unbalanced forces, even if you DID call a football a "soccer ball".
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