What is physics ? Discuss the importance of physics ?

Q: what isphysics ? Discuss the importance of physics ?

ANS: <a> Physics: “The branch of science which deals with the properties of matter, energy and their mutual relationship is known as physics. ”

<b> Scope and importance of physics in today’s technological world:

Physics has played on important role in our daily life.

For example

<1> The electronic media like T.V Radio, loud speaker , Telephone ,cell phone, photo phone, Fax machine  etc are the important  sources of communication which works on the principles of physics.

<2> Information technology is based on the principle of physics which is the scientific method of staring, protecting, processing, transmitting, receiving, and retrieving information.

<3> The whole world has become a global village due to use of computer networks which works on the principles of physics.

<4> Atomic bomb is the invention of physics which can be used for the production of luge amount of energy. It can be also used for defense purposes.

<5> X-rays , Y-rays, laser rays etc are the invention of physics which can be used in industry , health and agriculture department for various purposes.  

<6> cathode Ray oscilloscope {C.R.O} is the invention of physics which can be used as graph plotting device to see the wave from of a repetitive electronic  signals. The C.R.O can be also used in T.V circuit, in computer system and as A.C circuits or D.C circuits.

<7> All means of transport, like  aero plane, buses, motor cycles, railways etc work on the principles of physics.

<8> Electricity is the invention of physics, without which we can not imagine any machine in working conditions.

<9> Rockets and satellites are the invention of physics with the the help of which we can get information about the upper atmosphere.

<10> The simple machine like pulley, wedge, lever, screw-jock  etc are the invention of physics which can be used for various

Purposes in daily life.

<11> Physics explains the natural phenomena in terms of fundamental principle and basic laws.

<12> Electron microscope is the invention of physics which is used by various departments for various purposes.

<13> Telescope is the invention of physics which is used to see distant objects clearly.

<14> Micro scope is the invention of physics which can be used to study micro organisms clearly  and easily.

<15> Physics employs the essential steps of scientific method i,e observation, recording, analysis, prediction and verification.