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# Power

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(Redirected from Control)

**Power** has different meanings when talking about different subjects:

- Power (physics), how fast energy can be changed into work
- In sociology, power is when a person wants another to do something, and they do it. This might also be called
**influence**or**control**. - Electric power, electricity that comes from power plants or generators
- Statistical power, how likely the test is to say something is true when it is really true
- Exponentiation; in mathematics, "power" is multiplying a number by itself. In the expression 2
^{3}, where we multiply 3**2'**s together (**2*****2*****2**) we say that**2**is raised to the**power of****3** - A life force, called chi by the Chinese and kiai by the Japanese.
- In politics a great power is more powerful than other countries.