Discovered by the father of Physics, Galileo Galilei, this discipline is that branch of science that deals with the study of natural science. It includes the study of matter, its motion and behavioural approach through space and time, and its related entities of energy and forces.


Majorly, the discipline of Physics can be categorised into seven branches. These are as follows:


  • Mechanics- This branch deals with the motion and the causes. Also, it focuses on the interaction between different objects.
  • Thermodynamics- This branch deals with the study of heat and temperature.
  • Vibrations And Wave Theory- This branch focuses on the specific types of repetitive motion that occur in various objects, like springs, pendulums, sound, etc.
  • Optics- It studies the impact of light and colours, including mirrors and lenses.
  • Electromagnetism- This department of Physics deals with the electricity, magnetism and light incorporating electrical charge, circuits and magnets.
  • Theory of Relativity- This branch of Physics keeps an eye on the particles moving at any speed. This speed may vary from low to high or vice-versa.
  • Quantum Mechanics- This branch mainly deals with the behavioural aspects of subatomic and submicroscopic particles.




There is a long list of important laws of Physics. However, some of them are as follows:


  • Law of Gravitation- Objects attract each other with a force directly proportional to the product of the masses of the objects and inversely proportional to the square of the distance between them. 
  • Newton’s 1st law of motion (Law Of Inertia)- A body will continue to stay in rest until or unless an external force is applied.
  • Newton’s 2nd law of motion (Law Of Force and Acceleration)- Rate of change of momentum is directly proportional to the force applied.
  • Newton’s 3rd law of motion (Law of Action and Reaction)- Every action has an equal and opposite reaction. 
  • Newton’s law of cooling- A body cools or loses its heat to its surroundings is proportional to the excess of the mean temperature of the body
  • Archimedes’ Principle- The Archimedes' Principle states that an object immersed in liquid experiences an upthrust which is equal to the weight of the fluid displaced. 



  • It enhances the ability of problem-solving.
  • Advancements in technology.
  • It develops logical thinking ability.
  • Grooms the mind to think intellectually.
  • Physics is applied in many disciplines.



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