What is a magnetic pole called? What does magnetic pole mean?

The most magnetic part of the magnet is called the pole [1]. There is a magnetic field around the magnet, and the interaction between the magnets is mediated by the magnetic field. No matter how small a magnet is, there are two poles, and the magnet that can rotate freely in the horizontal plane always has one pole pointing south and the other pole pointing north, the one pointing south is called the south pole (s pole), and the one pointing north is called the north pole (n pole).

The magnetic poles of the same sex repel each other and the opposite poles attract each other. The Earth is a huge magnet, and it also has poles. The location of these two magnetic poles is very close to the south and north poles of the earth, and people call the magnetic pole near the north pole of the earth the geomagnetic south pole, and the other magnetic pole is called the geomagnetic north pole.

The most magnetic part of the magnet. For example, the two ends of a bar magnet are the most magnetic, which are the two poles. If a bar or needle-shaped magnet is suspended in a geomagnetic field, the poles are always pointing north and south, respectively, with the magnetic pole pointing north being called the magnetic north pole (or pole) and the magnetic south pole pointing south (or pole) pointing south.

The synonymous poles of different magnets attract each other; The same name is extremely mutually exclusive. The poles of any magnet always appear in pairs, and breaking a magnet into two does not separate its north pole from its south pole, but each half of the magnet has its own north and south pole, which is the basic characteristic of magnetic phenomena. Inversion of the magnetic poles The consequences of the inversion of the Earth's magnetic poles are quite serious and will affect the entire natural world.

Experts point out that the greatest disaster is the intense solar radiation. Usually, these cosmic rays are engulfed by the Earth's magnetic field in space. However, once the Earth's magnetic field disappears during the inversion of the Earth's poles, these solar particle storms will slam the Earth's atmosphere, having a fatal impact on the Earth's climate and the fate of mankind.

If this day does come, some low-orbit artificial satellites will also be completely exposed to the blowing of the solar electromagnetic storm and will soon be completely destroyed. These changes will pose great danger to spacecraft such as satellites, because the Earth's magnetic field protects against high-energy radiation from outer space, as if a spacecraft such as satellites were wearing a layer of radiation clothing. If the Earth's magnetic field changes, then the thousands of satellites and other spacecraft orbiting the Earth will lose the protection of the Earth's magnetic field, and they will be unprotected from high-energy radiation from outer space.

In addition, many organisms that rely on the Earth's magnetic field to navigate, such as swallows, antelopes, whales, pigeons, and magnetotactic bacteria, can be disoriented.

The most magnetic part of the magnet is called the pole, which is the south pole (s) and the north pole (n).

The full names of the poles of a magnet are the South Pole and the North Pole. The full name of the poles of the magnet is called the south pole and the north pole, and the composition of the magnet is iron, cobalt, nickel and other atoms, and the internal structure of the atoms is special, and it itself has a magnetic moment.

Magnets are capable of generating magnetic fields.

It has a ferromagnetic substance that attracts it.

Such as iron, nickel, cobalt and other metal characteristics, magnets are divided into permanent magnets and soft magnets, permanent magnets are added to strong magnets.

Make the spin of a magnetic substance with the angular momentum of the electron.

They are arranged in a fixed direction, and the soft magnetism is to add electricity.

Introduction of magnets

The content of this micro-lesson is selected from the textbook version of the primary school science textbook for the third grade.

The contents of section 3 of the fourth chapter of the second volume of the magnet. The overall design theme of this course is to use scientific stories to carry out teaching, use the creation of situations, lead to problems, design experiments, observe phenomena and analyze data, reveal the rules and apply what you have learned, and try your skills in solving problems.

Create a situation through a small steel ball that can run, trigger cognitive conflicts, stimulate students' interest in learning, and experience the process of asking questions, experimenting, and drawing conclusions.

A quiz is attached after class to consolidate what you have learned in a timely manner. The end of a lesson does not mean the end of knowledge, students use the methods learned in this lesson to find the poles of other common magnets, apply what they have learned, and draw inferences.

The pole means the part of the magnet that is most magnetic at both ends.

No matter where the magnetic needle is on the earth, its two ends always point in the north-south direction, indicating that the earth is a huge magnetic field. However, the earth's magnetic field is not eternal, its north and south magnetic poles have been reversed, that is, the north pole of the geomagnetic field changes to the south pole of the geomagnetism, and the south pole of the geomagnetic field becomes the north sock pole of the geomagnetism, which is the so-called "magnetic pole reversal".

The magnetic field is a very important property of the earth, and people invented the compass based on the phenomenon of magnetic poles, but the magnetic poles of the earth are not constant, but often inverted. As to why the magnetic poles are reversed, those who have not yet been hungry have a positive answer. The direction of the Earth's magnetic field has been changing since its inception, but relatively slowly.

There are many theories about the inversion of magnetic poles, and the more dominant ones are: the reversal of magnetic poles is because the earth is in the large magnetic field of the Milky Way, and the reversal of the earth's magnetic poles is transformed according to the reversal of the magnetic poles of the Milky Way. And also:

The result of the constant collision of materials in the earth's interior, the collision causes the magnetic field in the earth's interior to constantly change. Also: Meteorites hit the Earth causing a shift in the magnetic field.

No matter what it says, it is conjecture, and mankind's exploration of the earth and the universe will not stop.

Principle conjecture:

There are two conjectures: accidental phenomena and inevitable phenomena. The Earth's core, except for the inner core, which is solid (caused by high pressure), is liquid, and the rest is liquid iron.

Since the conjecture of the magnetic field mentioned above is that "the circulating flow of molten iron produces electromagnetism", then some convection may suddenly cause a loop, and the loop is derived to the surface to produce a reverse loop, and finally the entire magnetic field is reversed.

The whole process varies from 30,000,000 to 1,000,000 years, and the geomagnetic field is first completely chaotic, then subsides after about 10,000 years, and then strengthens in the opposite direction, and some people believe that this problem can be solved in a few thousand years. However, there are still people who believe that it is inevitable, that it is regular, that it can be predicted, but it has not yet been grasped by human beings. American scientists studying the sedimentary rocks at the bottom of Lake Minnesota have shown that the Earth has not had a magnetic pole change for 700,000 years, but in the last 4,000 years, the magnetic field is weakening sharply, losing half of its strength.

It can be seen that the Earth has entered the eve of the reversal of the magnetic field. Electricity can be generated using magnetic poles. Magnetic induction power generation, the robot itself has a magnetic induction generator.

Interpretation: The most magnetic part of the magnet is called the magnetic pole. No matter how small a magnet is, there are two poles, one pole is called the north pole, and the other pole is called the south pole;

Phenomenon: The magnetic poles of the same sex repel each other and the opposite poles attract each other. The earth is a huge magnet, and it also has two poles.

The positions of these two magnetic poles are very close to the south and north poles of the earth, and people call the magnetic pole near the north pole of the earth the geomagnetic south pole, and the other magnetic pole is called the geomagnetic north pole.

Explanation of the magnetic poles.

magnetic pole]

The part with the strongest residual rattle at both ends of the magnet explains in detail the part with the strongest magnetism on the magnet. The poles of bar, hoof, and needle magnets are all close to the ends. When the magnet is stationary under the action of the geomagnetic field, the connecting lines of the poles of the magnet are always vertically along the direction of the geomagnetic meridian, and the magnetic pole pointing north on the magnetic body is called the north pole (n pole), and the magnetic pole of the guide is called the south pole (s pole).

The poles on a magnet always come in pairs. The magnetic poles of the same name repel each other, and the magnetic poles of the same name attract.

Word decomposition Explanation of magnetism Magnetism Matter can attract Iron, nickel and other metals Property: Magnetism. Magnetic.

Magnet. Magnetic pole. Magnetic field.

Magnetization. Magnetic energy. Magnetic induction.

Same as "porcelain". radical : stone; Explanation of pole pole (pole) í apex, highest point, end :

Ascend to the throne (the emperor ascends the throne). Get to the top of the ladder. Refers to the north and south ends of the earth or the positive and negative ends of circuits and magnets

Polar (the region within the Polar Circle). Polar circle. North pole.

Cathode. Reach the apex: Extremely.

Look around. The pendulum will swing. The highest,