Question

What is the SI unit of time? Write its name and symbol.

Answer 1

We are asked about the SI unit of time, specifically the name and symbol of it. We can start by defining time. Once we have defined time, we can see its relevance in our daily lives and in the field of science. Then we can move onto stating the SI unit of time and the symbol of it. We can also classify the physical quantities on the basis of their origin so as to get a better idea of the concept.

Complete answer:
Let us start by defining the quantity, time. Time is considered to be the fourth dimension in our reality. If one thinks about it deeply, we can see that time is used to describe the happenings in the three-dimensional space. This makes time the fourth dimension or considered the third dimension.
Time is an important aspect because it is one of the seven fundamental quantities along with mass, length, charge, temperature, amount of substance and luminous intensity. A fundamental quantity can be defined as base quantities in the SI (system international) system that helps us derive other quantities like force or acceleration.
The SI unit of time is called seconds. This measure of time is represented with the small letter “s”.

Note:
Physical quantities can be classified into two depending on their origin. They are namely. Fundamental quantities and derived quantities. The fundamental quantities form the basis of the physical quantities from which other quantities can be defined. Derived quantities, as the name suggests are the ones formed or derived from the fundamental quantities.