Leah Taylor Power To have strength and force. A person can have physical or mental power, that can be used for good or bad. It is the ability or capacity to exercise control. A person can exercise power in the office, home, and in relationships. Most parents have the power of deciding what their children can and can not do up until the child is eighteen years old. Power can also be used as any form of energy that can perform work. We need power to run the electricity as will as our society. Power helps society to remain in order. When power is used in a good way, good things come out of it. But if power is used in a negative way bad things can happen