What does physics study

Many people ask themselves: "What does physics study?". Let's try to clarify. The word is of Greek origin and it is translated as nature. For the first time it was recorded in the writings of the greatest thinker of Aristotle, who lived before our era in the IV century. This is one of the oldest sciences, the field of natural science, and in Russia it appeared thanks to M.V. Lomonosov. He published the first textbook on this subject.

Carefully looking closely at what is happening around us, we notice all those various phenomena or changes occurring everywhere, everything that physics studies. They occur with substances and bodies in the surrounding world, and are called phenomena. For example: water in the kettle, standing on the fire begins to boil, a piece of ice melts in the room, the electric current passed through the wire, it red-hot, lightning, thunder, wind. The phenomena are magnetic, mechanical, sound, thermal, electric and light. The most fundamental and general patterns that determine the evolution and structure of the material world are everything that physics studies.

Physical phenomena are all processes of the transformation of a substance or the manifestation of their properties, occurring without changing the composition of matter. This science has an unusual feature. The uniqueness lies in the fact that simple phenomena are studied in physics, and with their help one can derive general laws. Its task is to study and discover laws, connecting the phenomena that occur in nature. They are the basis of all natural science.

There are a lot of examples. One of them is the fall of various bodies on the earth, caused by the attraction of the Earth. The change of night and day is due to the rotation of it around its axis. Many sciences, such as astronomy, biology, geography, chemistry - they all study nature and necessarily apply the laws of physics. Everything that this branch of knowledge is studying is vitally important for human existence, for the development of society, for the knowledge of the world and for many other things. Its importance in the modern world is extremely great.

All the differences of today's world from past centuries have occurred as a result of the application of physical discoveries in practice. Basics of physics are experiments. All laws were derived by experience. They are quantitative relationships expressed in mathematical language. In general, physics is divided into parts:

• Experimental. Its purpose is to establish new facts and test hypotheses and known physical laws;
• Theoretical. Focusing on the basics of physics, its laws, natural phenomena are explained and new ones are predicted.

The structure of science is very complex. It includes various sections and disciplines. Depending on what processes are being studied and what form the motion of matter stands out , put forward the mechanics of solids and material points, continuous media (acoustics inclusive) and static, thermo- and electrodynamics, optics, quantum mechanics, field theory and gravitation.

A very interesting section is quantum. For many on hearing, but not everyone knows what is studying quantum physics. This study and study of the microcosm. Its tasks are to describe the interaction of matter and energy in elementary particles. It is almost impossible to tell about such a complicated science in a simple language. One of its concepts is a quantum, which is an elementary indivisible particle of matter or energy.

In many ways, what quantum physics is studying, there are a whole series of paradoxes, inexplicable things over which the best minds of the planet have fought and continue to fight. For an example, let us cite several terms with which unrelated phenomena are connected. For example, a wave particle - an electron can behave like a wave, or the Heisenberg uncertainty principle - all of which do not yield to Newton's laws.