1-physical World
Physic :- lt is the branch of science which study about the nature and natural phenomenon
Scope of physics
Basically there are two domain of interest macroscopic and microscopic another one misoscopic.
1-Misoscopic :- In this domain range we will study the no of electron proton neuclus and the size of atoms
2-Macroscopic:- In this domain ranges we will study the object at the laboratory terrestrial and astronomical scale
3-Microscopic :- In this domain we will study the size of atoms neclus etc.
Fundamentals forces in nature
1-Gravitational force:- it is the mutual attraction force between two bodies due to their masses and is called gravitational force
2-Electromagnatic force :- it is the attraction and repulsion force between two electric
charges is known as electromagnetic force
3- Strong nucleus force :- it is the force in which holding protons and neutrons inside the nucleus is called the strong nuclear force -example -atom bomb
4-weak nuclear force:-it is the force in which work between elementary particles inside the nuclear process example radioactive decay
2-control experiment
3- reasoning analysis
4- mathematical modelling
5-prediction
6- varification /justification
2-Electromagnatic force :- it is the attraction and repulsion force between two electric
charges is known as electromagnetic force
3- Strong nucleus force :- it is the force in which holding protons and neutrons inside the nucleus is called the strong nuclear force -example -atom bomb
4-weak nuclear force:-it is the force in which work between elementary particles inside the nuclear process example radioactive decay
Scientific method to study the nature
1-observation2-control experiment
3- reasoning analysis
4- mathematical modelling
5-prediction
6- varification /justification
Thrust area and study of Physics
Unification :- it is the method in which different theories and laws can be explained by one minimum law - example Apple fall down rain falling Earth revolves around the Sun all application can be expalaned by the gravitational force
Reduction :- it is the method in which large and complex theory can be reduced in simple path
Some physicists from different countries
Name. Discovery country
1-Galileo Galileo - Law of Inertia. Italy
2-Albert Enstein examination of photoelectric theory of relativity Germany
3- Yukawa forces Japan
4 - Edwin Hubble - Expanding universe USA
5- C.V Raman Inelastic scattering of light by motorcycles India
