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Unformatted text preview: k 10 6 mega M 10 9 giga G 10 12 tera T Obsolescent units length: 1 micron = 10-6 m = 1 mm 1 angstrom = 10-10 m = 0.1 nm Force: 1 dyne = 10-5 N energy: 1 erg = 10-7 J 1 calorie = 4.1855 J pressure: 1 bar = 10 5 Pa = 100 kPa 1 atmosphere = 1.01325 x 10 5 Pa = 101.325 kPa 1 torr = 1 mm oF Hg = 133.322 Pa viscosity: 1 poise = 10-1 Nsm -2 = 1 Pa s volume: 1 litre = 10-3 m 3 allowed unit 1 milliliter = 10-6 m 3 allowed unit C Page 2 Quantity Derived units S.I. Unit Symbole Length meter m Mass kilograms kg Time second s Electric current ampere A Temperature kelvin K Luminous intensity candela cd Force (kg ms-2 ) newton N Energy (N m) joule J Power (J s-1 ) watt W Electric charge (A s) coulomb C Electric potential (J C-1 ) volt V Electric resistance (V A-1 ) ohm Electric capacitance (C V-1 ) farad F Electric inductance (V s A-1 ) henry H Frequency (s-1 ) hertz Hz Temperature ( T ( o C) = T(K)-273.15) degree Celsius o C Pressure kPa pascal Pa...
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- Spring '08
- Work, International System of Units, Kilogram, S.I. unit, Generale des Poids, preference SI units, basic scientific units