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A force is defined simply as a push or a pull.

A more comprehnesive definition is: A force is that which causes or prevents movement, or changes the direction of existing movement.

Force is measured in Newtons, after Sir Isaac Newton, who wrote Newton's three laws of motion.

Electrical force is known as voltage. A small force would be something like 4 volts. A large force would be something like 500 volts.

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