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...quivalent to ''s^-1'', is the [[International System of Units|SI derived unit]] of [[Radioactive decay|radioactivity]] (''A''). 1 Bq is defined as t {{SI units}} ...

...se sides measure exactly one meter. The square meter is derived from the [[SI base unit]] of the meter, which in turn is defined as the [[length]] of the ...magnitude]] difference between units doubles from their comparable linear units. For example, a [[kilometer]] is one thousand times the length of a meter, ...

...eferred to by the Greek letter Ω ([[Omega (letter)|Omega]])) is the [[SI]] unit of resistance (R). It can be defined by [[Ohm's Law|Ohm's law]] and {{SI units}} ...

...rl=https://web.archive.org/web/20160829224528/https://www.unc.edu/~rowlett/units/dictH.html | url-status=dead }}</ref> It is named after [[Joseph Henry]] (1 ...ral as henries. People do not capitalize unit names.<!-- referenced in the SI article --> ...

The '''newton''' (symbol: N) is the [[SI]] unit of [[force (physics)|force]]. It is named after Sir [[Isaac Newton]] * The [[United States customary units|US Customary Unit]] of force is the '''pound''' (symbol: '''lbf'''). 1 poun ...

| standard = [[SI base unit]] The '''coulomb''' (sometimes written '''C''') is the [[SI]] unit of [[electric charge]]. It is named after [[Charles-Augustin de Coul ...

...l: '''sr''') or '''square radian''' is the [[International System of Units|SI unit]] for solid angle. It is defined as the solid angle that, when project {{SI units}} ...

The '''tesla''' (symbol '''T''') is the [[International System of Units|SI unit]] used to measure the strength of [[magnetic field]]s. Tesla can be me ...nd Measures |title=Système International d'Unités (International System of Units) |year=1960}}. 11^th session, Resolution 12.</ref> It was named ...

...The radian was once an [[SI]] [[supplementary unit]], but was changed to a derived unit in 1995. In a circular sector with a central angle of one radian, the {{SI units}} ...

The '''volt''' (symbol: V) is the [[SI]] [[SI derived unit|derived unit]] of electric potential difference or electromotive force (also known ...issipates one [[watt]] of [[power (physics)|power]]. Hence, it is the base SI representation [[metre|m]]² · [[kilogram|kg]] · [[second|s]]<sup ...

...derstanding of many properties of physical objects in our world. In [[SI]] units, angular frequency is measured in [[radian]]s per [[second]], with dimensio ...le rotation (revolution) and <math>f</math> is the frequency. This can be derived by considering <math display="inline">\theta = \omega t</math> when <math d ...

{{redirect|SI}} [[File:SI base unit.svg|thumb |upright=1.2| Links between the seven [[SI base unit]] definitions. Counterclockwise from top: [[second]] ([[time]]), ...

...dary, <math>v</math> as the velocity of light in the respective medium (SI units are meters per second, or m/s). <math>n</math> is the refractive index of t ...', 1678, Huygens showed how Snell's law of sines could be explained by, or derived from, the wave nature of light.<ref>Rashed R. 1993. ''Géométrie et dioptriq ...

...ectromagnetic wave]] increases by 1 (In [[International System of Units|SI Units]]). It is named after the physicist [[Max Planck]]. The Planck constant is ...mentum]] multiplied by [[distance]]. In [[International System of Units|SI units]], the Planck constant is expressed in [[joule]] seconds (J⋅s) or ([[Newton ...