SI units is short for Système International d'unités, which is French for International System of Units.
The International System of Units (SI) is the modern form of the metric system and is the most widely used system of measurement in the world, both in science and commerce. It is governed by the International Bureau of Weights and Measures (BIPM). The system is built upon seven SI base units, which are:
- Second (s): unit of time
- Metre (m): unit of length
- Kilogram (kg): unit of mass
- Ampere (A): unit of electric current
- Kelvin (K): unit of thermodynamic temperature
- Mole (mol): unit of amount of substance
- Candela (cd): unit of luminous intensity
These base units can be combined to derive other units, like the Newton (N) for force (kg⋅m/s2) or the Joule (J) for energy (kg⋅m2/s2). The adoption of SI units ensures uniformity and facilitates easy communication in scientific and engineering fields.
In summary, SI stands for Système International d'unités, the internationally recognized system of measurement based on seven fundamental units.
