The Scope of PhysicsPhysics is the study of energy, matter, and their interactions. It’s a very broad field because it is concerned with matter and energy at all levels—from the most fundamental particles of matter to the entire universe. Some people would even argue that physics is the study of everything! Important concepts in physics include motion, forces such as magnetism and gravity, and forms of energy such as light, sound, and electrical energy.

Physics help us in a number of ways and affects daily life at aspects. The scope of Physics is quite vast as it deals with different circumstances under different quantitative and qualitative experimental conditions. The scope of physics can be understood under the two disciplines;microscopic(deals with physical world of atoms and molecules) andmacroscopic(deals with physical world of large bodies)

MicroscopicMacroscopic

Microscopic

Themicroscopicdomain includes the study and understanding of atoms, molecules, nucleus and other tiny particles. The microscopic domain forms the foundation forModern Physics. To know about the scope of Physics at the microscopic level, let’s understand what Modern Physics is:

Modern Physics

Modern Physics is a subdivision of Physics which covers the understanding of energy and matter at the microscopic level.MatterandEnergyare not considered separate in modern physics but alternate forms of each other i.e. they are interconvertible. Modern Physics is studied under two sections.

Quantum MechanicsTheory of Relativity

Quantum Mechanics

The branch of science which deals with motion and interaction of subatomic particles. Quantum Mechanics help us to understand how the universe operates at the atomic level. Several important concepts like quantization of charge, wave-particle duality, the uncertainty principle are covered inQuantum Mechanics.

Theory of Relativity

The theory of Relativity is proposed by Einstein. This theory helps us in understanding inertial (non-accelerated) and non-inertial (accelerated) frames of reference and how it affects subatomic particles.Theory of Relativityis the reason behind whySir Albert Einsteinis known asFather of Modern Physics.

Macroscopic

The macroscopic domain of physics includes the study and understanding of finite size objects and terrestrial bodies. We study the macroscopic domain of Physics in Classical Physics.

Classical Physics

Classical Physics deals with macroscopic bodies at terrestrial and astronomical level. It helps in understanding the interaction between two bodies, the force they apply to each other and what they are made of. Classical Physics is again subdivided into following disciplines.

MechanicsThermodynamicsElectrodynamicsOptics

Mechanics

Mechanics deals with the motion and general systems of particles, deformable bodies, rigid bodies and flow of liquids. In mechanics, we study the position and energy of the object. Newton Laws of Motion frames the basic of Mechanics where we get to know about how bodies and forces are interlinked, and how we can modify them to get desired inventions.

Mechanics covers following concepts:

Rocket propulsion with the help of ejecting gasesPropagation of water waves or sound waves in airEquilibrium between bodies under different experimental conditions

Thermodynamics

Thermodynamics deals with the relation between heat and conversion of heat into different types of energy (mechanical, electrical or chemical energy). You will get to know how engines work, what efficiency is and how Thermodynamics affects our life at various levels.

In thermodynamics, we study about

Efficiency of heat engines and refrigeratorsThe direction of a physical or chemical processHow body behaves differently at different temperatures and surroundingsChanges in internal energy and entropy, through supply of external heat and work are done on the system

Electrodynamics

Electrodynamics is a branch of science which deals with the interaction of charged bodies with magnetic and electric fields. It's basic laws are proposed by Coulomb and Oersted and are of great interests in thermodynamics.

Some interesting applications in electrodynamics are

The motion of current carrying conductor in electric and magnetic fieldDifferent types of voltage supply i.e. DC and AC and how we can interconvert them to save electricityThe working of antenna and transmission of signalsThe flow of radio waves in ionosphere

Optics

Optics is a branch of science which deals with light and its basic characteristics; reflection and refraction. Optics helps in analyzing the formation of images from distant objects by different types of mirrors and lens. Many flabbergasting phenomena like the twinkling of stars, a scattering of light, the formation of rainbow and time of sunset and sunrise are explained in Optics.

We learn in optics about

The working of telescopes and microscopesImage formation in different types of lensColour exhibited by thin films

Experiments and Researches

Experiments and Researches frame the achievements and contributions of physics in our life. Some achievements and researches occurred in physics so far are

Tread Walkis a mobility device for the elders and disabled ones.A lithium paper battery isan invention by Stanford researchers.Virtual Garageis designed by Jaguar Land Rover which helps in modifying cars in a virtual mannerVisually Impaired Assistantinvented by Noam Klopper helps the blind to skip obstacles on the road and provides directions via GPS technology

Conclusion

Overall glimpse of Physics is beautiful and becomes more appreciable as we learn more about the subject. The scope of physics is quite vast and covers an enormous range of magnitude of physical quantities like mass, length, time, energy etc. The scope is divided into two sections, where on one side it studies about phenomena at a very small microscopic level involving and analyzing electrons, protons, and neutrons. At the other side, we try to study bodies of huge size orders.

Physics is exciting in a number of ways. The scope of physics express itself in some beneficial ways are:

Few concepts and laws can explicate many natural phenomena covering large order of quantitiesNew experiments help in unlocking secrets of nature and form new laws to explain complex theoriesApplication and modification of laws help in inventing good devices to ease human comfort.