Question

What is Physics and from starting how did it get classified into??

Answer 1

What is Science?

$\implies$The word science has come from the latin word 'Scientia' , which means 'to know' . Thus the knowledge which man has gained through observations and experiments when organised systematically is called Science.

Natural Science

$\implies$Science related to natural phenomena is called 'Natural science'. Natural science is the fundamental send from which various branches, such as engineering, medicine, astronomy, agriculture, geography, geology, aeronautics etc. have been derived.$\:$

Natural Science can be classified into two main groups :-Biological Science — The science which deals with living things is called 'Biological Science'.Physical Science – The science which deals with non-living things is called 'Physical science'.

$\: \: \: \:$ There are two main classes of Physical science : (i) Physics and (ii) Chemistry.Physics

$\implies$ Thhe Branch of science which deals with nature and natural phenomena is called 'Physics'. In this branch we study about matter, energy and their mutual interaction.The word 'Physics' comes from the Greek word 'fusis' which means 'Nature'.

This word was introduced by the ancient scientist 'Aristole' in the year 350 B.C.The scope of science is very wide. It includes the study of distances from $10^{-14} m$ (size of nucleus) to $10^{25} m$ (size of universe), the mass from $19^{-30}$ kg (mass of electron) to $10^{55}$ kg (mass of universe) and time from $10^{-22}$ seconds (time taken by light to cross a nuclear distance) to $10^{18} \: seconds$ (life time of sun).

Answer 2

Answer:

Physics is a branch of science whose primary objects of study are matter and energy. Discoveries of physics find applications throughout the natural sciences and in technology, since matter and energy are the basic constituents of the natural world. Some other domains of study—more limited in their scope—may be considered branches that have split off from physics to become sciences in their own right. Physics today may be divided loosely into classical physics and modern physics.

Elements of what became physics were drawn primarily from the fields of astronomy, optics, and mechanics, which were methodologically united through the study of geometry. These mathematical disciplines began in antiquity with the Babylonians and with Hellenistic writers such as Archimedes and Ptolemy. Ancient philosophy, meanwhile – including what was called "physics" – focused on explaining nature through ideas such as Aristotle's four types of "cause".

The move towards a rational understanding of nature began at least since the Archaic period in Greece (650–480 BCE) with the Pre-Socratic philosophers. The philosopher Thales of Miletus (7th and 6th centuries BCE), dubbed "the Father of Science" for refusing to accept various supernatural, religious or mythological explanations for natural phenomena, proclaimed that every event had a natural cause.Thales also made advancements in 580 BCE by suggesting that water is the basic element, experimenting with the attraction between magnets and rubbed amber and formulating the first recorded cosmologies. Anaximander, famous for his proto-evolutionary theory, disputed Thales' ideas and proposed that rather than water, a substance called apeiron was the building block of all matter. Around 500 BCE, Heraclitus proposed that the only basic law governing the Universe was the principle of change and that nothing remains in the same state indefinitely. This observation made him one of the first scholars in ancient physics to address the role of time in the universe, a key and sometimes contentious concept in modern and present-day physics.The early physicist Leucippus (fl. first half of the 5th century BCE) adamantly opposed the idea of direct divine intervention in the universe, proposing instead that natural phenomena had a natural cause. Leucippus and his student Democritus were the first to develop the theory of atomism, the idea that everything is composed entirely of various imperishable, indivisible elements called atoms.