"If I have done the public any service, it is due to my patient thought."
- Isaac Newton, physicist

The scientific community surely thinks he did the public a great deal of service. They named a unit of measurement after him.

The unit of force was one of the most frequently discussed in my high school physics classes, along with it's kin, friction and tension. In physics terms, force is definited as mass times acceleration and is basically described as when one object accelerates into another. Tension is when something pushes or pulls on another. When a person pulls a block with a rope, there is tension in the rope. Friction is when one object rubs against another creating heat, a type of energy. The more rough the sides of the objects are, the more friction and thus the more heat produced.

Forces are an integral part of everyday life. Do these words have any other specific connotations?