VIDEO LECTURE
THEORY NOTES
Physics
Physics is the branch of science which observes the nature represents it mathematically and
conclude with the experiment. The word Physics is derived from Ancient Greek „physicos‟ meaning
„knowledge of nature‟
BRANCHES OF PHYSICS
The main branches of Physics are as follows.
1. Mechanics
This branch of physics is mainly concerned with the laws of motion and gravitation.
2. Thermodynamics
Thermodynamics deals with heat and temperature and their relation to energy and work.
3. Electricity
Electricity is the study of properties of charges in rest and motion.
4. Magnetism
Magnetism is the study of magnetic properties of materials.
5. Atomic Physics
Atomic physics deals with the composition structure and properties of the atom.
6. Optics
Optics studies physical aspects of light and its properties with the help of optical instruments.
7. Sound
Sound is the study of production, properties and applications of sound waves.
8. Nuclear physics
Nuclear physics deals with the constituents, structure, behavior and interactions of atomic nuclei.
9. Particle physics
Particle Physics studies the elementary constituents of matter and radiation, and the interactions
between them.
10.Astrophysics
The study of celestial objects with the help of laws of physics is known as Astrophysics.
11.Plasma physics
The study of ionized state of matter and its properties is known as Plasma Physics.
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