N alone vimir. Basic physical quantities, their letters of designation in physics. СІ: rooftop windows

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It's not a secret for anyone that there is a special meaning for the values of any kind of science. Letters of designation in physics to prove that science has ceased to be blameworthy for identifying quantities with additional special symbols. The main quantities, as well as the other ones, are rich, the skin of some of them is a symbol. Also, letters of recognition in physics are clearly seen in this article.

Physics and basic physical quantities

Zavdyaki Aristotle began to get accustomed to the word physics, the oscillators of the same vіn were already living in the term, which at that time became synonymous with the term philosophy. Tse s spіlnіstyu object vyvchennya - the law of the All-world, more specifically - those, like wine functioning. Apparently, in the XVI-XVII centuries, the first scientific revolution was seen, the very beginning of its physics was seen in independent science.

Mikhailo Vasilyovich Lomonosov, in the Russian language, the word physics was seen as the first teacher in physics in Russia.

Otzhe, physics є razdіlom prirodoznavstva, devotions to the encroachment of the sacred laws of nature, and navіt materії, її ruh i strukturі. The main physical quantities are not so rich, as you can see at first glance - there are 7 in total:

dozhina,
masa,
hour,
struma power,
temperature,
a lot of speech,
the power of light.

Zvichayno, the stench mayut their letters of recognition in physics. For example, for mass of words, the symbol is m, and for temperature - T. Also, all quantities have their own unit of vimir: the strength of light has a candela (cd), and the quantity of speech has a unit of vimiruvannya є mole.

Other physical quantities

There are significantly more similar physical quantities, lower than the main ones. There are 26 of them, and often the deacons of them are attributed to the main ones.

Otzhe, the area is a good day, obsyag - the same way a year, shvidkist - in an hour, a day, and sooner, with its blackness, characterizes the change of speed. The impulse manifests itself through the mass and speed, the force - the increase in mass and speed, the mechanical work to lie in the force of that dovzhina, the energy is proportional to the mass. Tension, pressure, gap, surface gap, linear gap, amount of heat, voltage, electric support, magnetic flux, moment of inertia, moment of impulse, moment of force - stink to lie in the mass. Frequency, top speed, top speed are wrapped in proportion to the hour, and the electric charge can be directly stale at the hour. Kut ta telesny kut є pokhіdnymi values іz dovzhina.

What letter denotes the voltage in physics? The voltage, as a scalar quantity, is denoted by the letter U. For speed, the designation may look like the letter v, for mechanical work - A, and for energy - E. Electric charge is usually denoted by the letter q, and magnetic flux - F.

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The International System of Units (SI) is a system of physical units, as it is based on the International System of Units, including the names of the values of physical units. It was adopted by the General Conference on the occasion of entering that vag. The system itself regulates the letter designation in physics, as well as their diversity and unity in the world. For the recognition of vikoristovuyutsya letters of the Latin alphabet, okremih vipadkah - Greek. It is also possible to recognize the use of special symbols.

Visnovok

Otzhe, be-yakіy naukovіy disciplines є osoblivi znachennya for raznomanіtnyh quantities. Obviously, physics is not to blame. Literary meanings to finish richly: strength, area, mass, speedy, tension is too thin. bud. The stench mayut oznachennya. It is a special system, as it is called the International System of Ones. It is important that the main units cannot be mathematically derived from the others. Pokhіdnі values otrimuyuyut for additional multiplier and podіlu s basic.

Newton (sign: H, N) is the unit of the world of force in the CI system. 1 newton is a healthy force that supports a body with a mass of 1 kg, an acceleration of 1 m / s² for a straight line of force. In this order, 1 N \u003d 1 kg m / s². Odinitsa is named after the English physicist Isaac.

Siemens (symbol: Cm, S) is the unit of electrical conductivity in the CI system, the value is wrapped in ohm. Until the Other Light War (in the Soviet Socialist Republic until the 1960s), a Siemens was called a unit of an electric pole that supported a pole ... Wikipedia

This term may have other meanings, div. Tesla. Tesla (Russian designation: Тl; international designation: T) is the unit of the magnetic field induction in the International system of units (СІ), numerically equal to the induction of such ... Wikipedia

Zivert (designation: Sv, Sv) unit of the world effective and equivalent doses of ionizing drug in the International System of Units (SI), has been victorious since 1979. 1 zіvert per kіlkіst energy, clayed by a kilogram ... ...

Tsey term мє інші meaning, div. Becquerel. Becquerel (designation: Bk, Bq) is the unit for the activity of the radioactive dzherel in the International System of Units (SI). One becquerel is designated as the activity of a dzherel, ...

This term may have other meanings, div. Siemens. Siemens (Russian designation: Сm; international designation: S) unit of electrical conductivity in the International system of unity (СІ), the value is wrapped by ohm. Through others ... ... Wikipedia

This term may have other meanings, div. Pascal (meaning). Pascal (significant: Pa, international: Pa) is the unit of vice (mechanical stress) in the International system of units (SI). Pascal is a better vice ... Wikipedia

This term may have other meanings, div. Gray. Gray (sign: Gy, Gy) is the unit of the clayed dose of ionizing alcohol in the International System of Units (SI). The dose is more than one gray, as a result ... Wikipedia

This term may have other meanings, div. Weber. Weber (sign: Wb, Wb) - the unit of control over the magnetic flux in the CI system. For the purpose, changing the magnetic flux through a closed loop, one weber per second should be pointed at ... Wikipedia

This term may have other meanings, div. Henry. Henri (Russian designation: Гн; international: H) is the unit of inductance in the International system of units (СІ). Lantsyug may be inductive one henry, which means changing the struma of swidkistyu.

Physics is like a science, like a law of our All-World, victorious standard methodology for achieving that simple system alone in the world. it is accepted to denote N (newton). What is the power, how do you know and die? Let's take a closer look at the report.

Isaac Newton is a prominent English scholar of the 17th century, who made an invaluable contribution to the development of exact mathematical sciences. Sam Vin is the forefather of classical physics. Iomu farted to describe the law, how the majestic celestial body, and the fuzzy squeaks, like to take away the flow of the wind, are ordered. One of the main yoga principles is the law of all-world gravity and the three main laws of mechanics, which describe the interaction of bodies in nature. Pіznіshe іnshі vchenі could bring the laws of tertya, calmly this forging is less than zavdyaka to the scientific experts of Isaac Newton.

Trochy theory

A physical quantity was named in honor of the great Bulo. Newton is the unity of the world of force. The very purpose of the force can be described as follows: "strength is the strength of the world in the interplay between bodies, or the value that characterizes the degree of intensity and tension of the bodies."

The magnitude of the force is not the same for Newtons. For the same students, three unbreakable "power" laws were created, which are relevant to our days. Let's see them on the butts.

first law

For a complete understanding of food: "Chim є Newton?", "I'm alone in the world of what?" and "What yoga physical sense?", varto respectfully remember the three main

The first to talk about those who don’t pour other bodies on the body, then it’s better to stop in peace. And as if the body was changing in Russia, then with the new daily life, be it on a new one, we continue our equal movement in a straight line.

Show that on a flat surface there is a songful book with a songful mass. Having indicated all the forces that are exerted on a new one, we take it that the force of gravity, as it is straightened vertically down, i (in this vertical table), is straightened vertically uphill. Shards of insulting forces are equal to one and the same, then the magnitude of the equal force is equal to zero. According to Newton's first law, for the very reason the book rests.

Another law

Vіn describe vzaєmozv'yazok mizh force, scho dіє on the body, but sooner, like it will be taken away after the applied force. Isaac Newton, while formulating the law, firstly won the constant value of the mass as the world showing the inertia and inertness of the body. Inertness is called building, or power is the body, save your own cob camp, so that you can repair the opir ovnіshnіm inflows.

Another law is often described by this formula: F = a * m; de F - tse equal to all forces applied to the body, a - quickening, which is taken by the body, і m - mass of the body. The power of the dead is shown in kg * m / s 2. Tsey viraz i is accepted to mean in newtons.

What is Newton like in physics, which is assigned as soon as possible, and how it is bound by force? Axis qi power vіdpovіdaє formula of another law of mechanics. Following the understanding that this law works only for quiet bodies, as if they are collapsing with swedes that are richly smaller than the sweds of light. With the values of fluidity, close to the fluidity of light, trochs of other laws are worked out, adapted by a special division of physics about the theory of water capacity.

Newton's third law

Tse, perhaps, the most absurd and simplest law, which describes the interplay of two bodies. Vіn svіdchit, scho tse forces blaming in pairs, so that one body deviates even more with singing strength, the other body, its blackness, also pours on the first with equal modulus of strength.

The very formulation of the law we consider as follows: "... mutually two bodies are one on one equal between each other, but if they are straightened in the opposite side."

Let's figure out what a Newton is. In physics, everything is taken into account on specific objects, so we will give some examples to describe the laws of mechanics.

Waterfowl creatures on a kshtalt pump, ribs or toads collapse at the water or the water itself, the winds interact with it. Newton's third law is to talk about those that, with the dimention of one body, on the other hand, vinika and protidium, are equal in strength to the first one, but are straightened out at the protidium. Vihodyachi zgogo, you can make visnovok, so that the ruh kachok vіdbuvaetsya zavdyaє to the one who stink with their paws vіdshovhuyut water back, and themselves spit forward through the water at the water’s edge.
The big wheel is a hell of a butt to prove Newton's third law. What is the white wheel, everyone knows melodiously. The goal is to achieve a simple design, which will guess the wheel and the drum. Її they are installed at the clitins, so that home-grown whites on the kshtalt whites and decorative squints could grow. The interaction of two bodies, the wheels of that creature, to cause insults to the bodies of the body to collapse. Moreover, if the squirrel lives fast, then the wheel spins with great swedishness, and if it improves its speed, then the wheel starts spinning more. Tse more times to bring, scho diya and protidiya at vіdpovіd zavzhd equal among themselves, wanting and directing in the opposite side.
Everything that is collapsing on our planet is collapsing only on the Earth's winds. It can be wondrous, but when walking, we apply susilla only in order to shov the earth, or be it on the other side. And we rush ahead, for we have shtovhaє at the top of the earth.

What is Newton like: unity is a world or a physical quantity?

The very purpose of "Newton" can be described as follows: "there is only one in the world of power." And why is yoga physical sense used? Later, vihodyachi z another Newton's law, epochal value, as it is shown as a force, can be created in just 1 second to change the speed of a body with a mass of 1 kg per 1 m / s. Come out, Newton - tse tobto out there can be straight. If we apply force to an object, for example shtovhaemo doors, then we instantly set and straight to the rush, which, according to another law, will be like that, like a straight force.

If you follow the formula, it would appear that 1 Newton = 1 kg * m / s2. In case of variance of different tasks in mechanics, it is often necessary to translate newtons into other quantities. For the sake of knowing the quietness of other values, it is recommended to remember the main tokens, as they show newtons with other units:

1 H = 10 5 days (dyne - unit vimir in the CGS system);
1 N \u003d 0.1 kgf (kilogram-force - unit of force in the MKGSS system);
1 H \u003d 10 -3 stіn (unit of death in the MTS system, 1 stіn dоrіvnyuє silі, yak podomlyає prikorennya in 1 m / s 2 be that body mass 1 ton).

Law of all-world gravity

One of the most important evidence of the scientist, which turned the facts about our planet upside down, is Newton's law of gravity (see below for such gravity). Obviously, before the new boule, try to guess the mystery of the gravity of the Earth. For example, having allowed the first, that not only the Earth can gain strength, but also the very bodies of the building attract the Earth.

Rather, Newton fared away mathematically to bring the interrelationship of the force of gravity and the law of the rotation of the planets. After the impersonal conduction of the subsequent teachings of understanding, it is not true that the Earth attracts objects to itself, but the mustache of the body is magnetized one to one. Vіn vivіv the law of gravitation, which is to say that be-like bodies, including celestial luminaries, are attracted by the force, which is more expensive G (gravitational postiyna) that mass both tіl m 1 *m 2 divided into R 2 .

All the laws and formulas introduced by Newton made it possible to create a complete mathematical model, which can be achieved not only on the surface of the Earth, but also far beyond the borders of our planet.

Alone transformation

When rozv'yazannі tasks next memory about the standard yaks vikorivuyutsya including for the "Newtonian" alone in the world. For example, in questions about cosmic objects, de masses are great, it is often blamed for the need to ask great values to smaller ones. If the output is 5000 N, it will be more convenient to record 5 kN (kiloNewton) in the output. Similar singles have two types: multiples and lengths. The axis of the most victorious of them: 10 2 N \u003d 1 hectoNewton (DN); 10 3 N \u003d 1 kiloNewton (kN); 10 6 N \u003d 1 megaNewton (MN) and 10 -2 N \u003d 1 centiNewton (CH); 10 -3 N = 1 milliNewton (mN); 10 -9 N = 1 nanoNewton (NN).

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