What is the full form of SI Units, Names and Symbols

Do you want to know, What does SI Unit stand for a unit? We are going to learn about The full form of SI Unit in Physics. you will also come to know the meaning of SI Units in different categories. And also what are the abbreviations of SI Unit ka full form? So you should read this post till the end?

Full Form of SI Unit » International System of Units

SI Unit Stands for Système International d’Unités. which means an International system of units. The International System of Units (or SI) is the modern metric system of units most used in science. It is the modern version of the metric system, which was developed in the 1790s by the French scientist, Guillaume-François-Joseph de L’Hôpital.

International system of units is the most widely used system of measurement in the world. The SI is a metric system, which is the measurement system of choice throughout the world because it is reliable, consistent, and accurate. The International System of Units is based on 7 basic units these are following-

Base unitsunitsymbol
electric currentampereA
thermodynamic temperaturekelvinK
luminous intensitycandelacd
amount of substancemolemol

SI Units, Names and Symbols in physics list

The units are mainly divided into two parts –

  1. Base units – The units which are used for the basic quantities are called fundamental units like length, mass, time etc.
  2. Derived Unit – If a unit is a combination of two or more basic units, then such a unit is called a Derived Unit. in short, the derived units depend on the Base units.

For example, the unit of volume is cubic centimeter and the unit of area is square centimeter. If you look at these units carefully, then two basic units have been combined into one unit like cube and centimeter, square and centimeter etc.

Unit of Area = Meter Meter = Meter2
Unit of Volume = Meter Meter Meter = Meter3
Unit of force = kg m/s2 = kg–m/s2 = newton
Unit of work = Newton meter = kg-meter2/second2

SI units hold a very important place for physical quantities in science. That is why we will learn about different SI Units, Names and their Symbol.

Unite Name S.I Unit
Length unitSymbol
Area unitSymbol
square kilometresq km, or km2
square centimetresq cm, or cm2
Volume unitSymbol
cubic metrem3
cubic centimetrecu cm, cm3, or cc
Capacity unitSymbol
Mass and weight unitSymbol
metric tont
Energy unitsymbol
hertz (frequency)Hz
newton (force, weight)N
joule ( work, energy, quantity of heat)J
pascal (pressure, stress)Pa
watt (power)W
coulomb (electric charge)C
volt (electric potential difference)V
farad (electric capacitance)F
ohm (electric resistance, reactance)Ω
siemens (magnetic flux)S
weber (magnetic flux)Wb
tesla (magnetic induction)T
henry (inductance)H
lumen (luminous flux)lm
lux (illuminance)lx

Types of system of units 

There are mainly four systems of units 

  • Units of the MKS method 
  • Units of CGS System 
  • Units of FPS method 
  • Units of SI System 

In all types of method, the units of the basic quantities are measured in different types of small and large values such as –

1. Units of MKS System – In this system the units are written in the following way.

  • length = meter 
  • mass = kilogram 
  • time = second 

2. Units of CGS System – In this system the units are written in the following way.

  • length = centimeter 
  • mass = grams 
  • time = second 

3. Units of FPS System – In this system the units are written in the following way.

  • length = feet 
  • mass = pound 
  • time = second

4.SI System of Units –  It is also called International System. There are 7 units in this system which are of the following types –

  • length = meter 
  • mass = kilogram 
  • time = second 
  • Light intensity = candela  
  • Electric current = ampere 
  • Temperature = Kelvin 
  • amount of substance = mole 

SI Unit is used as an acronym to represent the International System of Units. now you might have got some idea about the abbreviation, acronym, Full form, and meaning of SI Unit.

What does Mean SI Unit?

In the above article, we have discussed The Definition and meaning of SI units. Now we are going to discuss some FAQs that are frequently asked on the internet. So there are many FAQs on the full form of SI Unit. let’s explore some of them.

  1. What is the full form of SI Unit?

    The Full Form of SI Unit is ”International System of Units The Definition of SI Unit and all possible meanings are given above, You might also like some similar terms related to SI Unit.

  2. What does SI Unit stand for?

    SI Unit stands for ”International System of Units“. But there may be more than one meaning of SI Unit, so check out all meanings of SI Unit in the Above post section.

  3. What does SI Unit mean?

    SI Unit is an acronym that means ”International System of Units“. you can read Most used SI Unit Full Form Meaning. check out related information in the above section.

  4. What is the SI Unit Meaning in Hindi

    The SI Unit meaning in Hindi is ”इकाइयों की अंतर्राष्ट्रीय प्रणाली“. It may be more than one Meaning of SI Unit so check out one by one in the above section.

  5. SI Unit ka full form in Hindi

    SI Unit ka full form in Hindi is ”इकाइयों की अंतर्राष्ट्रीय प्रणाली“. It has many other Full Forms there are listed Above.

  6. SI unit of surface tension

    The SI unit of Surface Tension is Newton per Meter or N/m. surface tension is the measure of how much surface area is taken up by a liquid. It is a measure of the strength of the surface adhesion of liquid to a solid or a gas.

  7. SI unit of speed

    The S.I unit of speed is metre/second. spead can be calculate by Speed (S) = distance(d)/time(t). The unit is used to measure the speed of an object or a motion.

  8. SI unit of acceleration

    The SI unit of acceleration is define as metres/second2 (m/s2). The SI unit of acceleration is often used to express the rate at which something is moving, such as when a car is moving, or when something is moving on a plane, train, or spacecraft.

  9. SI unit of heat

    The joule is the SI unit of energy, and energy is a synonym for heat. Heat is a sum of the kinetic energy of atoms or molecules of a sustance.

  10. S.I. unit of electric current

    The SI unit of current is Ampere. current is define as The rate of flow of charge.

  11. S.I. unit of Temprature

    The SI unit of current is kelvin.  degree Celsius (°C) is also another S.I. unit of Temprature. the relation between kelvin and degree Celsius is define as K = °C + 273

  12. SI unit of force

    The SI unit of force is Newton. the formula of force is define as Force = mass * acceleration.

  13. SI unit of density

    kilogram per cubic metre (kg/m3) is the SI unite of density in physics. The mass contained in a unit volume of a substance is called the density of that substance. Density was discovered by the Greek scientist Archimedes.

In this post, we discussed all the important things about What is the meaning of SI Unit. You will not only get all the possible SI Unit Full Form & Meaning. But also get various acronyms, abbreviations, and the meaning and full form of SI Unit with definitions.

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