What is the SI system?

Answer 1

It's the interconnected system of weights and measures that most of the world uses: that meter - liter - kilogram thing. So far, Americans seem to be sticking with their old-fashioned pounds and bushels and pints and miles and acres. In SI, all the units are related in some way to each other (for example, a hectare, a measure of land area, is the same as 100 meters squared) and units are related to each other by factors of ten. In contrast, American units use different factors within a reckoning and different kinds of measurement are often awkwardly related. Example: 12 inches to a foot, 3 feet to a yard, 5.5 yards to a rod, 4 rods to a chain, 10 chains to a furlong, 8 furlongs to a mile, whereas 1 kilometer equals 1,000 meters, 100 dekameters, 10 hectometers, 10,000 decimeters, 100,000 centimeters and a million millimeters. One cubic decimeter of water is exactly 1 kilogram (or close enough for anything but high science) while there are only more or less 8 pounds to the gallon.

Answer 2

The SI system (International System of Units) is the modern form of the metric system used in science and everyday life to express quantities like length, mass, time, and temperature. It provides a standard set of units based on fundamental constants in nature, ensuring consistency and coherence in measurements worldwide. Common SI units include meters for length, kilograms for mass, seconds for time, and kelvin for temperature.

Answer 3

It is the abbreviation of the International Standard of measurement units.

Meter for length, kg for mass, Joule for energy, second for time, .....etc