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# Basic Units and Measurement concept

Hello Friends,

Good Morning every body so far we have studies Physical World you should study step by step every concept is related with each other for better understanding go through each post.
Today our topic is important and interesting second chapter Physics.
Units and Measurement:

Very first we have to discussed about physical quantity here we study about nature in physics and nature is around us whatever object we see and interact with this we see in nature different object have different characteristics.Each and every component of nature having different characteristics like chock, board, light,earth, air, water many more each and every component we sense around nature.

 Basic Units and Measurement concept
This natural component has to nomenclature on the basis of their characteristics and we want to measure that characteristics because in some component it is large value and in some component small value of that characteristics, take some example if we put a chock in our hand and feel force on your hand very small but second time put a 5kg mass then feel force on your hand it will be large so what we observe here both of this object having a single characteristics small chock is pushing my hand very little but heavy mass 5kg pushing my hand large so pushing is a single characteristics in both object with different values. similarly for small size object and large size object it will be characteristics of same with different values so characteristics of nature which can be measured is called "physical quantity".

Why we want to measure Physical quantity ?
Nature is a science of measurement nature is all about measurement how we say today is hotter on the basis of measurement two friend are discussing one say today is hotter and other say yesterday was hotter no one is agree to accept then go to third person and ask yesterday was hotter or today is hotter then third person measure temperature and say yesterday temperature was 45 degree Celsius today is 50 degree Celsius then they agreed otherwise fighting continue so science is measurement take an another example of land two person are fighting one say my land is from this pillar to 10th pillar other say 10th number pillar is in my land then what is solution measurement so physics is all about measurement which measurement nature because physics is study of nature what we want to measure characteristics so finally we measure nature characteristics.
Now how we will measure any physical quantity ? we will have to make a unique system.
Thanks for reading Basic Units and Measurement concept