Scalars and Vectors

Scalar and Vector all of us have come across these words in some point of our lives, let us try and understand the meaning of these today. These words have special importance in physics. So basically there are two kinds of physical quantities- Scalar quantities and Vector quantities. So, Scalar quantities are the quantities which do not require a direction to be specified. These are such quantities which are complete without a specified direction like mass [not to be confused with weight], pressure, distance, etc. Whereas vectors are the physical quantities which require a direction to specified along with the magnitude. These are physical quantities which require a specific direction to give the complete information they should give, such quantities are velocity where in you could tell for example a car is travelling with a velocity of 5 m/s going towards east, here 5 m/s is the magnitude and eastwards is the direction. Other examples of vectors include- Force, displacement, acceleration [my personal favorite] and many more. Well you might be tempted to ask why these are the way they are. Well the simple reason for that is because they are DEFINED THAT WAY. Yes, this is the very reason why these quantities are called what they are called, all of them have been defined by us humans like that. It might have had happened that we humans would have called force to be pressure and pressure to be called ertazsd [a random sequence of letters] and if that would have happened then ertazsd would have been a normal word to all of us and not a random sequence of characters. So,there are a lot of quantities out there yet to be defined let us all go study physics, discover new things of interest and define these waiting to be defined, who knows you might discover something and you might truly end up naming it ertazsd, truly the possibilities are endless!!!