International System of Units (SI) – Conversion Factors

What is the SI system:

SI stands for International System of Units and is taken globally for standard unit of measurements.

The SI system has the International system of Quantities, so called because it has seven base quantities. The International System of Quantities is the basic set of SI units and from this all other units can be derived. The seven base quantities are length (meter), mass (kg), time (seconds), electric current (Ampere), Thermodynamic temperature (kelvin), Amount of substance (mole) and Luminous intensity (Candela). Now let’s draw a table for 7 basic sets of SI units.

Physical quantities can be divided into 2 types, which are:

• Fundamental quantity:

These are the primary quantities and used to derive other quantities. Generally these are a group of physical quantities.

examples: Mass, time, electric current, Luminous intensity, temperature etc.

• Derived quantity:

These are the secondary quantities and are derived from the primary quantities. These are known as derived quantities as derived from primary quantities.

examples: Speed, volume etc.

Unit Conversion factors:

Unit Conversion factor is used to change the units of measured quantity, by establishing a relationship between units, without changing the value.

Unit Conversion factors is a multistage process and uses multiplication, division to find out the Conversion value. There are many Conversion factors used to convert from one unit to another. If we consider the Conversion factor of SI units there are many Conversion factors that can be established between units. Examples: milligrams to kilograms, millimeter to meter, minutes to seconds, Fahrenheit to Kelvin, milliampere to Ampere, millicandela to Candela, yotta moles to moles etc.

The SI system is the advanced form of the metric system or can say the modern form of the SI system. It is used in most countries as their measurement system and used in factories, industry, science, technology etc. Almost everywhere where some magnitude or length or some scientific calculations are present to be measured.

Conclusion:

The SI units are used to convert units and are very useful to use the values in day-to-day life. These SI systems are very useful and used by not only the school level students but also the greatest scientist of worlds have to use the SI units. They help us to measure a certain quantity or magnitude or length by a specific unit.