Physics

Physics is the study of how the nature is working ?  how the natural laws are dealing us in the Earth?  How and why the physical objects are exist in this Earth ?.

It has different branches such as :-

1. Classical physics  
2. Modern Physics
3. Nuclear Physics
4. Atomic Physics
5. Geophysics
6. Biophysics
7. Optics
8. Mechanics
9. Acoustics
10. Thermodynamics
11. Astrophysics