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In physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. In older works, power is sometimes called activity. Power is a scalar quantity.
In common parlance, electric power is the production and delivery of electrical energy, an essential public utility in much of the world. Electric power is usually produced by electric generators, but can also be supplied by sources such as electric batteries.
Power is the rate at which energy is generated or consumed and hence is measured in units (e.g. watts) that represent energy per unit time. For example, when a light bulb with a power rating of 100 W is turned on for one hour, the energy used is 100 watt hours (W·h), 0.1 kilowatt hour, or 360 kJ .
In physics, energy (from Ancient Greek ἐνέργεια (enérgeia) 'activity') is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.
Energy portal. Wikimedia Commons has media related to Power (physics). Subcategories. This category has the following 11 subcategories, out of 11 total. Electric power (26 C, 140 P) Human power (2 C, 10 P) Nuclear power (13 C, 47 P) Power control (5 C, 10 P) Power tools (4 C, 14 P) Powered flight (3 C, 3 P) Powered toys (2 C, 3 P)
Physics is the natural science of matter, involving the study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines. .
Common meanings. Power (physics), meaning "rate of doing work". Engine power, the power put out by an engine. Electric power, a type of energy. Power (social and political), the ability to influence people or events.
