What are the four major mechanics in physics?

The four major mechanics are: theoretical mechanics, electrodynamics, thermodynamics and statistical mechanics, and quantum mechanics. This is the main content of theoretical physics, which is divided according to the object of physics research.

According to historical logic, physics can be divided into classical physics, modern physics, and contemporary physics. Classical physics and modern physics basically took the year 1900 as the boundary, marked by the proposal of quantum theory, and physics entered the development process of modern physics.

Among them, classical physics is divided into three parts (also known as the three achievements of classical physics): classical mechanics, classical electrodynamics, thermodynamics, and classical statistical physics;Among them, there are three forms of classical mechanics, namely: Newtonian mechanics, Lagrangian mechanics, and Hamiltonian mechanics, and the latter two are collectively known as analytical mechanics.

Therefore, classical mechanics and theoretical mechanics are the same in content, but they are called differently from different perspectives

Therefore, Newtonian mechanics is a level of classical mechanics that belongs to classical physics. I don't know if I made it clear. Hehe, contemptible graduated from Hefei University of Technology in applied physics, welcome to communicate!

Quantum Mechanics, Analytical Mechanics, Electrodynamics, Thermodynamics and Statistical Physics....Newtonian mechanics is a simple mechanics in a frame of inertia and does not belong to the category of the four major mechanics....

Theoretical Mechanics, Thermodynamics, Electrodynamics, Quantum Mechanics;

Newtonian mechanics belongs to theoretical mechanics;

This is a standard university undergraduate program.

Kinetics, Thermodynamics, Electromagnetics, Kinematics.

Gravitational Force, Electromagnetic Interaction (Electromagnetic Force), Strong Interaction (Strong Force), Weak Interaction (Weak Force), Gravitational Force is the interaction that occurs between multiple substances with mass, and Electromagnetic Interaction is the interaction that occurs between multiple substances with electric charge.

Strong nuclear forces, electromagnetic forces, weak nuclear forces, and gravitational forces. Everything in the universe attracts each other, and the farther away you are, the smaller the gravitational pull. The electromagnetic force is the force caused by the support of charged particles, and both the electric and magnetic fields are generated by the charges.

I know that they are weak interaction forces, strong interaction forces, gravitational forces, and electromagnetic forces.

The reason for the occurrence of gravitational force (brief description): When the high-energy particles moving in the universe pass through matter (celestial bodies or particles), part of them are intercepted and absorbed to form a weak energy region (Einstein's space-time curvature), which is the gravitational range mv2=e=mv2 (the formula of the law of conservation of energy conversion). For more details, please see the forthcoming gravitational hypothesis, "Elemental Periods and the Causes of Gravitation".

Analytical Mechanics, Quantum Mechanics, Electrodynamics, Statistical Mechanics.

The most famous courses in the Department of Physics are the four major mechanics - quantum mechanics, electrodynamics, statistical mechanics, and analytical mechanics. These four courses are the core courses of undergraduate physics and constitute the most basic framework of the theoretical system of physics. Because of this, each course of the Four Mechanics integrates a large number of basic knowledge of mathematics and physics, which has become a nightmare for physics students because of its extreme difficulty.

Sometimes, a question has to be deduced for several pages, and even more than ten years after graduation, some department members still can't forget the fear of being dominated by the four major mechanics, especially the pain they have experienced in the electrodynamics exam with their own dry food until the school building closes.

Chemistry does not involve the nucleus, only the deflection and transfer of electrons outside the nucleus, and it involves the increase and decrease of the potential energy of the electrons. Nuclear physics, the changes inside the nucleus, do not involve electrons, but involve the nuclear force in the nucleus, which belongs to the strong interaction force, whether it is nuclear fusion or nuclear fission, it will change the number of protons in the nucleus, that is, the elements will change to generate new elements.

Quantum mechanics is a fundamental study of the physical phenomena of wave-particle duality of microscopic particles, any particle is both a particle and a wave, and the probability theory of microscopic uncertainty to macroscopic determinability.

The four fundamental forces in <> physics are gravitational force, electromagnetic interaction force, weak interaction force, and strong interaction force.

1. Gravitational attraction: refers to the force of attraction that exists between any two particles of matter.

2. Electromagnetic interaction force: refers to the force between charged particles or charged macroscopic objects.

3. Weak interaction force: It is only shown in certain reactions between particles (such as decay), the force range is shorter than the strong force, and the force is very weak.

4. Strong interaction force: The force that exists between protons, neutrons, mesons and other hadrons is called strong force.

Physics:

Physics is the study of the most general laws of motion of matter and the basic structure of matter. As a leading discipline in the natural sciences, physics studies the most basic forms and laws of motion of all matter, from the universe to elementary particles, and thus becomes the research foundation of other natural science disciplines. Physics began in the days of Galileo and Newton, and it has become a fundamental science with many branches.

Physics is an experimental science, and it is also a science that advocates rationality and attaches importance to logical reasoning. Physics makes full use of mathematics as its working language, and it is one of the most sophisticated natural sciences today.

The three major mechanics refer to theoretical mechanics, material mechanics, and structural mechanics.

1. Theoretical mechanics is a discipline that studies the basic laws of mechanical motion of objects. A branch of mechanics. It is the basis of the various sub-disciplines of general mechanics.

Theoretical mechanics is generally divided into three sections: statics, kinematics, and dynamics. The starting point of the research is some basic concepts and axioms and laws that reflect the basic laws of the motion of ideal objects.

2. Material mechanics is the study of the strain, stress, strength, stiffness, stability and the limits of the failure of various materials under the action of various external forces. The research objects of material mechanics are mainly rod-shaped materials, such as rods, beams, shafts, etc. The problems of truss structures are discussed in structural mechanics, and the problems of plate-shell structures are discussed in elastic mechanics.

3. Structural mechanics is a branch of solid mechanics, which mainly studies the law of force and force transmission of engineering structures, and how to optimize the structure of the discipline, the content of structural mechanics research includes the composition rules of the structure, the response of the structure under the action of various effects, including the calculation of internal forces, the calculation of displacement, and the calculation of the dynamic response of the structure under the action of dynamic loads.