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SI - Units

SI - Units: Encyclopedia II - SI - Units

The international system of units consists of a set of units together with a set of prefixes. The units of SI can be divided into two subsets. There are the seven base units. Each of these base units are dimensionally independent. From these seven base units several other units are derived. In addition to the SI units there are also a set of non-SI units accepted for use with SI. A prefix may be added to units to produce a multiple of the original unit. All multiples are integer powers of ten. For example, kilo- denotes a multi ...

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SI, SI - History, SI - Units, SI - SI writing style, SI - Spelling variations, SI - Cultural issues, SI - Trade

SI, SI - Cultural issues, SI - History, SI - SI writing style, SI - Spelling variations, SI - Trade, SI - Units, Units of measurement, Weights and measures, Mesures usuelles, Metrified English unit, History of measurement, Imperial units, U.S. customary units, Metre-tonne-second system of units, Chinese system of units, Planck units, Atomic units, Geometrized units, CODATA, Metrication, Metric system in the United States, Metrology, Coordinated Universal Time (UTC), Binary prefixes - used to quantify large amounts of computer data, Orders of magnitude, ISO 31

SI: Encyclopedia II - SI - Units

SI - Units

Main articles: SI base unit, SI derived unit, SI prefix

The international system of units consists of a set of units together with a set of prefixes. The units of SI can be divided into two subsets. There are the seven base units. Each of these base units are dimensionally independent. From these seven base units several other units are derived. In addition to the SI units there are also a set of non-SI units accepted for use with SI.

A prefix may be added to units to produce a multiple of the original unit. All multiples are integer powers of ten. For example, kilo- denotes a multiple of a thousand and milli- denotes a multiple of a thousandth hence there are one thousand millimetres to the metre and one thousand metres to the kilometre. The prefixes are never combined: a millionth of a kilogram is a milligram not a microkilogram.

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18 Brumaire, 2009, American, American English, Atomic units, Binary prefixes, Blaise Pascal, Bureau International des Poids et Mesures, CGPM, CODATA, Chinese system of units, Coordinated Universal Time (UTC), European Union, First Consul, France, French Revolution, French language, General Conference on Weights and Measures, Geometrized units, History of measurement, ISO 31, Imperial, Imperial units, In the United States, International Committee for Weights and Measures, Japan, Kelvin, Litre, Mesures usuelles, Metre-tonne-second system of units, Metric system in the United States, Metrication, Metrified English unit, Metrology, NIST, Napoleon I, Orders of magnitude, Planck units, SI base unit, SI derived unit, SI prefix, U.S. customary units, UK, US, USSR, United Kingdom, United States, Units of measurement, Weights and measures, World War II, ampere, amperes, base units, candela, centimetre-gram-second, comma, commerce, conversion to metric units, coulombs, data, decimal, engineers, exponent, farads, history of the metric system, in terms of SI units, italic type, kilogram, litre, lower case, measurement systems, metre, metric system, mole, non-SI units accepted for use with SI, numeral system, ohms, other units, pascal, physicists, point, prefix, prefixes, promote a worldwide measurement system, radio engineers, science, second, solidus, standards organisation, system of units, systems of measurement, unit, volts

Adapted from the Wikipedia article "Units", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki

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