Power (physics)

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Power (physics)

Power (pronounced: /ˈpaʊər/) in Physics is the rate at which work is done or energy is transferred or converted. It is derived from the Greek word 'dynamis', meaning 'force'.

In the SI system, the unit of power is the Watt, which is equal to one Joule per second. Power can also be measured in Horsepower, a unit commonly used in the automotive industry.

Etymology

The term 'power' comes from the Latin word 'potere', meaning 'to be able'. The scientific usage of the term in physics comes from the work of James Watt, a Scottish inventor and mechanical engineer, who used the term to describe the rate of work done by a steam engine.

Related Terms

  • Energy: The capacity of a physical system to perform work.
  • Force: A push or pull upon an object resulting from the object's interaction with another object.
  • Work: The measure of energy transfer that occurs when an object is moved by an external force along a displacement.
  • Watt: The SI unit of power, equivalent to one joule per second.
  • Horsepower: A unit of power commonly used in the automotive industry.

See Also

External links

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