What is physics and what is it for?

The physics is a science that serves to explain the various phenomena that occur in nature, such as energy, force, gravity, speed and many more.

This discipline is very old and has generated a large number of interpretations around aspects of great relevance and interest for humanity throughout its history, such as: our universe, phenomena related to climate, energy, matter and the relationships between these .

What does physics study?

Physics is a discipline that deals with the study of matter, energy and the large number of phenomena that occur daily in nature.

This science and its multiple tools make available to us, based on observations, reasoning and experimentation in this regard, a number of theoretical assumptions and laws.

These laws help us to clarify how our universe behaves.

Physics in everyday life

We have already been commenting that physics explains the phenomena that surround us, so, although we are not dressed in a lab coat and glasses, this science is not distant from our daily and daily activities.

Let’s see some cases where the study of physics is directly related:

• Mechanics, through the study and understanding of how the movement of bodies takes place.
• Behavior of materials.
• Electricity

This science is closely related to all technical advances, to which we have become accustomed:

• In the construction of buildings, machinery for daily use and highly technical use, physics is a permanent ally.

• The simple fact of opening the shower tap to take a bath is related to principles where this discipline has made important advances, for the description of how water can flow from one place to another.

• If we take it to an even larger scale , carrying out the calculations to be able to build a dam and keep the water there that will allow the populations to develop the socio-economic and productive activities that require this vital liquid, does not escape the action of physics, allied in this case to engineering.

• Relate the previous example and the ability to generate changes in hydraulic energy to obtain electrical energy is based on relationships that physics interprets.
• Thanks to physics, the fact of turning on any household appliance at home, our computer, turning on a light bulb, are possible acts.

With the studies that are promoted from physics, important advances have occurred in the lives of human beings, although today they are routine, we must not forget that they have been thanks to studies on electricity and electrical circuits.

Traveling by any means of transport puts us in direct contact with physics, who, through the many widely studied principles, allows us to know the relationship between speed, routes or distances and the time we have to have to be on time. on any date.

How we see these are just some of the examples of the scope of physics in our daily life.

What are the main Branches of Physics?

We can mainly divide physics into 3 areas:

Classical Physics

Study the phenomena related to: Electromagnetism, mechanics, acoustics, thermodynamics and optics.

· Modern physics

He studies how particles smaller than the atom behave and also studies cases of the relationship between energy and matter on the same scale.

Contemporary Physics

He is currently studying the interaction between atoms. The bodies and how they modify space and time from astronomy.

There are other related areas or branches related to the field of action of physics, below:

· Cosmological Physics:

As its name indicates, it conducts studies on the cosmos, the universe, its origin and the changes it has undergone, in addition to studying its future.

Astrophysics:

This benefits us by studying for its understanding aspects related to the functioning of the cosmos, in a fractional way, they study galaxies, planets, asteroids and their trajectory.

Geophysics:

In this case, the characteristics of our planet are studied, from the perspective of physics, including its structure, its evolution.

· Biophysics:

He focuses his study on research carried out on ecosystems, cells and their functioning. In general, biophysics studies living organisms.

Atomic physics:

Study individual atomic physical properties, as well as the interaction between this type of particle and magnetic and electric fields.

· Nuclear physics:

He focuses his studies on the properties of the atomic nucleus. He studies the fusion of these and fission as bases of the generation of such important energy, nuclear.

· Photonic Physics:

He focuses his study on the properties of photons. These have the smallest sizes that can exist in the cosmos. These are called light particles, with this science, their ability to transmit information is studied.

Physical-chemistry:

Starting from molecular and atomic physics, he studies physicochemical events.

Why is Physics important?

Physics is very important because it studies energy and matter, based on the knowledge of their properties, their qualities and the relationships between the two.

Also from physics, many of the processes necessary for the advancement of science can be carried out, starting from research.

The importance of physics and its application in the advances of technology is quite relevant. Some of these processes of interest are:

• Atomic Interaction:

Among these, the collisions between atoms are related to theoretical investigations, based on the interaction of particles with matter in any of its physical states, as well as its properties.

• Metals:

This research is directed to the thermodynamics and mechanics of the different alloys between metals and also other materials.

• Statistics:

In these investigations the tools of statistics and physics are applied to economic, biological, social, ecological systems and epidemiology.

• Judicial and Forensic:

Thanks to physics, different analyzes based on very advanced microscopy techniques are put at hand in judicial and forensic processes.

• Optical Properties:

Materials are characterized in laboratories using these techniques, as well as the use of light and vibrations. Applicable to detect molecules.

• Magnetic resonance:

The description of the characteristics and thermodynamic, magnetic, transport and elastic properties of innovative magnetic materials is carried out, they are also used in systems integrated by nanoparticles, super-mesh nanotubes and multilayers.

• Medicine:

Particularly in the treatment of diseases such as cancer. Studying how radiation acts on tissues.

• Technology:

With contributions for innovation in materials and ultra-sensitive instrumentation.

How is Physics related to the other sciences?

Physics supports the other areas of knowledge, which together determine how the evolution and behavior of the universe are based on the atoms and cells of the simplest organisms.

Origin of Physics

This science has allowed us to know about our environment, since ancient times there are investigations to discover how and why natural phenomena occur. The same phenomena that were originally attributed to superior forces or the presence of Gods, were studied through science.

By using observation as a basis and much later the scientific method, the knowledge to understand the true causes of each natural event was obtained thanks to physics.

In cases where experimentation is not feasible, observation gains strength, because through it, its systematization, the bases for theories and laws are given.

Main laws of Physics

Talking about physics and its relevance without mentioning some of its laws is practically impossible.

Newton’s Laws

• Law of Inertia, also known as the First Law. In this law Newton suggests that to alter the motion of a body, there must be a force that causes the change. This change may refer to rest.

• The second law, quantifies the force, explains that the changes that the body will experience will be in proportion and in the same direction of the force that is applied. Thus he relates the force to the acceleration of the body.

• The third law is the law known as action and reaction. For each of the forces that act on the body, it will react by applying an action of the same proportion, but in the opposite direction.

To conclude, it is worth noting that the development of physics has been possible thanks to the joint work of many scientists throughout history, so its role has been and will be decisive for man. The progress of physics drives the development of other sciences, from astronomy to geology are tied to it.

Physics has been a fundamental support for the greatest scientific and social advances, since in no way can they be separated, since science makes available to society answers to current concerns and problems.