energy , power ( definition , units and numeral)
Answers
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.
SI unit: watt (W)
In SI base units: kg⋅m2⋅s−3
Derivations from other quantities: P = E/t; P = F·v; P = V·I; P = τ·ω
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Energy:
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. ... The SI unit of energy is the joule, which is the energy transferred to an object by the work of moving it a distance of 1 metre against a force of 1 newton.
SI unit: joule
In SI base units: J = kg m2 s−2
Other units: kW⋅h, BTU, calorie, eV, erg, foot-pound
Power:
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. ... Power is a scalar quantity.
SI unit: watt (W)
In SI base units: kg⋅m2⋅s−3
Derivations from other quantities: P = E/t; P = F·v; P = V·I; P = τ·ω