Physics - what's that?

From the Greek "fyuzis" comes the word "physics".It means "nature."Aristotle, who lived in the fourth century BC, the first to introduce this concept.

«Russian» began with the filing of Physics, MV Lomonosov Moscow State University, where he translated the first tutorial with the German language.

Science Physics

Physics - is one of the basic sciences of nature.In a world of constantly taking place around the various processes change, ie the phenomenon.

For example, a piece of ice in a warm place will begin to melt.And the water in the kettle on the fire to boil.The electric current passed through the wire, it heats and even red-hot.Each of these processes - phenomenon.In physics, it is mechanical, magnetic, electrical, sound, heat and lighting changes, to study science.They are also called physical phenomena.Looking at them, the scientists deduce laws.

task of science is to discover these laws and their study.Nature study such sciences as biology, geography, chemistry and astronomy.All of them apply the laws of physics.


addition to the usual in physics and use special words called the term.This "energy" (in physics it is a measure of different forms of interaction and motion of matter, as well as the transition from one to another), "force" (a measure of the intensity of the influence of other bodies and fields on any body) and many others.Some of them have gradually entered the spoken language.

For example, using the word "energy" in daily life in relation to man, we can assess the consequences of his actions, but the energy in physics - is a measure of the study in many different ways.

All bodies in physics is called physical.They have a volume and shape.They consist of substances which, in turn, are some of the kinds of matter - is all that exists in the universe.


Much of what people know, was obtained during the observations.To study the phenomenon, they are constantly being watched.

Take, for example, falling on the ground of various bodies.It is necessary to find out whether this phenomenon is characterized by the fall of bodies of unequal weight, different heights and so on.Wait and watch the different bodies would be very long and not always successful.Therefore, for the purposes of such experiments carried out.They differ from the observations, since their specially sell to a predefined plan with defined objectives.Typically, in terms of building any guesswork in advance, that is, the hypothesis put forward.Thus, in the course of the experiments they will be refuted or confirmed.After considering the results of experiments and explain conclusions.Since scientific knowledge is obtained.

values ​​and their units

Often, studying any physical phenomena that have different dimensions.When the fall of the body, for example, measure the height, weight, speed and time.All these are physical quantities, that is, those that can be measured.

Measuring the means to compare it with the same value, which is taken as a unit (the length of the table is compared with the length unit - meter or other).Each variable has its own unit.

in all countries trying to use uniform units.In Russia, as in other countries, using the International system of units (which means "international system").It adopted the following units:

  • length (characteristic length of the lines in numerical terms) - meter;
  • time (flow processes, the possible change in the condition) - second;
  • mass (in physics this characteristic that defines the inertial and gravitational properties of matter) - kilogram.

is often necessary to use the unit, well above the generally accepted largest - multiples.They are called with the appropriate prefixes from the Greek: "deck", "hecto", "kilo" and so on.

units that are smaller than the received called tudinal.They apply from the Latin prefix "deci", "Santa", "Milli" and so on.

Instruments for measuring

To conduct the experiments, necessary equipment.The simplest of these are line, cylinder, roulette and others.With the development of science improved, more complex and new instruments: voltmeters, thermometers, stopwatches and others.

Generally devices have a scale that is dividing bar on which are written the values.Before the measurement, determine the price of division:

  • take two stroke scale with values;
  • is subtracted from the larger lower, and the resulting number is divided by the number of divisions that lie between.

example, two strokes with the values ​​of "twenty" and "thirty", the distance between which is divided into ten periods.In this case, the price will be equal to one division.

Accurate measurements and error

measurements are performed more or less accurately.The permissible inaccuracy is called the error.When measuring it may not be more than the price of the device for measuring the division.

accuracy depends on the price of division and the correct use of the device.But in the end in any dimension are obtained only approximate.

Theoretical and Experimental Physics

These are the main branches of science.It may seem that they are very far from each other, especially as most people are, or theoreticians or experimentalists.However, they are constantly developing side by side.Any problem, consider and theoreticians and experimentalists.First is the matter of the description of data and elimination of hypotheses, and the second check of the theory into practice, conducting experiments and obtaining new data.Sometimes called an experiment to achieve without the described theories.In other cases, on the contrary, it is possible to obtain results that are scanned later.

Quantum physics

This trend started in the end of 1900, when was discovered new physical fundamental constant, called Planck's constant in honor of the German physicist who discovered it - the Max Planck.He solved the problem of the spectral distribution of light that emit the heated body, while the classical physics of this total could not do.Planck conjectured quantum energy of the oscillator, which was incompatible with classical physics.Thanks to her, many physicists began to reconsider old ideas, change them, which resulted in a quantum physics.This is a completely new view of the world.

quantum physics and consciousness

phenomenon of human consciousness in terms of quantum mechanics is not entirely new.The basis of it was laid by Jung and Pauli.But only now, with the emergence of this new field of science, the phenomenon has been considered and studied on a larger scale.

quantum world is multifaceted and multidimensional, it has a variety of classic individual and projections.

two main properties within the proposed concepts are sverhintuitsiya (ie obtaining information as if from nowhere) and management of subjective reality.In the usual conscious person can see only one picture of the world and are not able to consider two immediately.While in reality there is a huge amount of them.All this together is the quantum world and the light.

This quantum physics teaches us to see a new human reality (although many Eastern religions and magicians have long owned this technique).It is only necessary to change human consciousness.Now the man is inseparable from the world, but are taken into account the interests of all life and existence.

It is then immersed in a state where he can see all the alternatives, it comes enlightenment, the absolute truth.

principle of life from the point of view of quantum physics is for a person to it, among other things, contributed to a better world order.