international system of units [2]

Decimal system established by the 11th General Conference on Weights and Measures (GCWM) in 1960 and used by many countries.

becquerel

Radioactivity of a substance in which one atom disintegrates per second.

degree Celsius

Division into 100 parts of the difference between the freezing point of water (0°C) and its boiling point (100°C) at standard atmospheric pressure.

pascal

Uniform pressure exerted on a flat surface of 1 m2 with a force of 1 newton.

mole

Quantity of matter equal to the number of atoms in 0.012 kg of carbon 12.

newton

Force required to impart an acceleration of 1 m/s2 to a body having a mass of 1 kg.

kelvin

Zero Kelvin is equal to minus 273.16°C.

kilogram

Mass of a platinum prototype that was accepted as the international reference in 1889; it is stored at the International Bureau of Weights and Measures.

meter

Distance traveled by light in a vacuum in 1/299,792,458 of a second.

measurement of electric resistance

measurement of electric potential difference

measurement of luminous intensity

measurement of power

measurement of energy

measurement of electric current

measurement of electric charge

measurement of frequency

measurement of radioactivity

measurement of Celsius temperature

measurement of pressure

measurement of force

measurement of amount of substance

measurement of thermodynamic temperature

measurement of mass

measurement of length