Personally , physics showcase a love and hate relationship with me. I believe Science is the most important and essential theory to learn as it explains the various process through a retrospective mindset. The water ,the planet ,heating of objects on rubbing ,energy coming from the sun and the nucleus ,the function of a human body ,the rainbow and many more objects and events taking place around can be deeply explained through science and its laws of physical aspects.
We expect that all these different events in nature take place according to some basic laws and revealing these laws of nature from the observed events is physics
The Phenomenon taking place in our daily routine varying from the orbiting of the moon around the earth from falling of an apple (from a tree ) or the tides in the sea on a full moon night , can all be explained if we know the newtons law of gravitation and newtons law of motion— physics is comprised of these laws and beyond.
The great physicist Dr RP Feynman has given a wonderful description of what is the “understanding the nature” is; which is that knowing the basic rule is the minimum required if any progress is to be made for any particular process or activity.
The vast world of physics is researching different components of the nature and it is in fact realistic . No one has been given the authority to print these rules of physics , we only discover them
Namely , some of the famous physicist were Aryabhatta, Newton Einstein or Feynman because from their observations, available at that time, they could guess and frame the laws of physics which is seen about nature and its subsequent elements in a convincing way .
Nature is dynamic so it keeps on changing ;hence it is possible that the observations that were made earlier hold not much importance today , so it is a constantly evolving process .
Fundamental vs derived quantities
The fundamental or base quantities are independent of each other while the derived quantities may be expressed in the terms of the fundamental quantities.
The fundamental quantities include length, mass, time ,electric current, thermodynamic temperature ,amount of substance and luminous intensity.
While the derived quantities include force buoyancy ,velocity ,speed and many more.
World and it’s structures
World is made up of number of particles ; large or small part , though after extensive experimental work it was concluded that the world was made up of just three types of ultimate particles— proton, neutron and electron ;an aggregation of atoms and molecules.
The laws that we generally deduce to microscopic objects are not always applicable to the atoms, molecules ,nuclei or the elementary particles; hence the law is known as classical figure physics dealing with large size elements only.
Nature is seen to be a well-connected entity
Concluding ,the scope of physics is wide ; covering a tremendous range of magnitude of physical quantities. Physics , technology and its nature are related to one another . Technology gives rise to new physics and physics generate new technology in presence of the nature . Everything in this process has a direct impact on society making it essential for us as human to learn and know more about the physical elements to get to know more about our world for making it a better place to live !!
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