Physics is the study of matter, energy, and the interaction between them.
Broadly it is classified as-
1. Mechanics- This focuses on the behavior of objects and the forces that act upon them.
2. Thermodynamics- This is the study of heat, temperature, and energy.
3. Optics- This is the study of light waves.
4. Acoustics- This is the study of sound waves.
5. Electromagnetism- This is the study of electric and magnetic forces.