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Branches of physics

Importance of physics in our daily life
In our daily life we hardly find a device in which laws of physics are not involved.
  • Pulleys are used to lift heavy loads.
  • Electricity is used to get light,heat and mechanical energy that drives fans and electric motors.
  • Means of transportation such as car and aeroplanes,domestic appliances such as air conditioner,refrigerators,vacuum cleaners,washing machines and microwave oven etc.
  • The means of communication such as radio,TV,telephone and computer are the result of applications of physics.These devices have made our lives much easier and faster and more comfortable than the past.
  • Computer is the invention of physics.

10 branches of physics and their definition

Mechanics

It is the study of motion of objects,its causes and effects.
Sub branches of mechanics are:
  • Classical mechanics
  • Kinematics
  • Dynamics
  • Statistical mechanics

Thermodynamics (Heat)

It is the study of nature of heat,modes of transfer and effects of heat.

Sound

It is the study of physical aspects of sound waves,their production,properties and applications.

Light(optic)

It is the study of physical aspects of light,its properties and use of optical instruments.

Electricity and Magnetism

It is the study of the charges at rest and in motion,their effects and their relationship with magnetism.

Atomic physics

It is the study of the structure and properties of atoms.

Nuclear physics

It is the study of properties and behavior of nuclei and the particles.

Plasma physics

It is the study of production,properties of the ionic state of matter.

Geophysics

It is the study of the internal structure of the earth.

Classical physics

The branch of physics that deals with newton’s laws of motion,law of gravitation,Maxwell’s kinetic theory and thermodynamics.
The classical physics is mostly related with energy and matter which are considered as different entities.Main branches of classical physics are Acoustics,optics ,classical mechanics and electromagnetic.
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