Why can rubber rods after rubbing with artificial leather adsorb shredded paper?

Static ...... is generated on the surface after rubbing

Static electricity creates an adsorption force ......

It ...... like a magnet can absorb iron

Friction produces static electricity Static electricity can adsorb relatively light and small things.

The rubber rod is electrified after rubbing. So it can attract small and light objects.

The principle of triboelectric generation: different objects have different abilities to confine electrons, so when they come into contact with each other, electrons will be transferred, so that two objects will carry the same amount of xenoelectric nuclei.

Any two objects rubbing against each other can be electrified. In the mid-18th century, the American scientist Benjamin Franklin analyzed and researched that there are two kinds of electricity with different properties, called positive electricity and negative electricity. The electricity carried by an object due to friction is either positive or negative.

Scientifically stipulated: the same electricity carried by a glass rod rubbed with silk is called positive electricity; The same electricity as a rubber rod that has been rubbed with fur is called negative electricity.

Triboelectric is just a phenomenon. Modern science tells us that any object is made up of atoms, and atoms are composed of positively charged nuclei and negatively charged electrons, and electrons move around the nucleus.

Under normal circumstances, the number of positive charges in the nucleus band is equal to the number of negative charges in the electron band outside the nucleus, and the atom is not electrically charged, so the whole object is neutral. It is difficult to change the number of positive charges in the nucleus, but the electrons outside the nucleus can get rid of the nucleus and transfer to another object, so that the number of negative charges in the electron belt outside the nucleus changes. When an object loses electrons, the total number of negative charges in its electron band is less than the positive charge of the nucleus, showing that it is still positively charged; On the contrary, an object that would otherwise be neutral, when it gets electrons, it shows being negatively charged.

When two objects rub against each other, one of them must lose some electrons and the other gets extra electrons. If a glass rod is rubbed against silk, some of the electrons of the glass rod are transferred to the silk, and the glass is positively charged due to the loss of electrons, and the silk is equinegatively charged due to the electrons obtained. Rub the rubber rod against the fur, some of the electrons of the fur are transferred to the rubber rod, the fur belt is positively charged, and the rubber rod carries the same amount of negative electricity.

The cause of friction of the same material.

By rubbing against each other with some of the same materials that are easy to generate electricity, the two friction surfaces can be electrified. Further experiments show that the charges on the two surfaces are homogeneous, and some materials can have a positive charge after friction, and some can have a negative charge after friction.

After excluding external influences (e.g., conduction of charges by other conductors), the same results can still be obtained.

This phenomenon is explained by taking into account the contamination of the surface of the medium.

Because the medium is contaminated to a certain extent in the surrounding environment before it is rubbed, the result of the contamination is the formation of an electric layer due to contact between the medium and the contaminant. Friction will cause a part of the pollution to be separated from the surface of the medium, so that the electric layer between the part of the medium and the pollution will also be separated, so that the medium will be charged. Because the medium is the same, and the pollutants are also the same, the electric layer is also the same, so when the electric layer is separated, the medium has the same charge.

Friction creates static electricity, and the paper is very light, and it conducts electricity, and it attracts it.

It is because static electricity is generated after friction.

When a charged body is close to a small and light object, the small and light object is also charged (the opposite charge of the charged body) due to the electrostatic induction, so the charged body can attract the small and light object.

Because he was electrified after rubbing--- I don't need to talk about this.

There is a theorem: an electrically charged object attracts tiny objects.

The outer electrons of the material are stratified, when attracted by external forces, they can break away from the bondage of the nucleus and become free electrons into the air, the charge is conserved, so it will be charged, and the outer shell will be detached and negatively charged.

With the same amount of dissimilar charge Contact charge: with the same charge The charge of the glass rod rubbed by silk is positive, and the charge of the rubber rod rubbed by the fur is negative, so it is negatively charged.

The electrons carried on the fur will be attracted away by the rubber, but the insulator is not conductive, and the conductivity is that the electrons can move in a certain direction before the current is generated.

The rubber rod has a stronger ability to bind electrons than the fur, and after rubbing, the rubber rod attracts a part of the electrons of the fur. As a result, the rubber rod becomes negatively charged due to the excess electrons, while the fur has a positive charge due to the loss of electrons.

An insulator is the ability to direct electricity, and it cannot be said that it cannot be electrified

The nature of being charged and conducting electricity is not the same.

It's triboelectric electricity.

The phenomenon of using friction to make two different objects charged is called triboelectric (or the phenomenon that after two different objects rub against each other, one object is positively charged and the other object is negatively charged). Triboelectric is the result of the transfer of electrons from one object to another. Therefore, when two uncharged objects are electrorically charged by friction, the amount of electricity they carry must be equal numerically.

Objects that have been rubbed have the phenomenon of attracting small and light objects.

Two Charges: There are only two types of charges that exist in nature. It is stipulated that the charge of the belt of the glass rod rubbed by the silk is called the positive charge, and the charge of the rubber rod that is rubbed with the fur is called the negative charge.

When static electricity is generated, what you learn in physics class can often be used in your school textbook.

Physics should have been learned in middle school, friction produces static electricity.

I'm hungry for the air in the area.

Because static electricity causes this phenomenon!

Static electricity is generated after friction, and the positive and negative charges have the property of attracting small and light objects, so they suck up scraps of paper.

Because friction produces static electricity, static electricity has the property of attracting small objects. Not only with a ruler, but also with other objects, such as glass rods rubbing against silk.

Because the plastic ruler rubs against the hair, the charge on the surface of the object is transferred, and the number of positive and negative charges is different, resulting in static electricity.

This is a physics problem in the first semester of the second year of junior high school, isn't it triboelectric electricity, static electricity can attract light and small substances, and after combing the hair with a comb, it can also attract light and small substances.

Because when the ruler rubs against the hair, static electricity is generated, and the static electricity will adsorb the shredded paper to the ruler.

That's triboelectric electricity. Friction makes it easy for the surface of the ruler to combine with a positive charge with electrons

Friction makes it easy for the surface of the ruler to combine with a positive charge with electrons

It's not just a ruler, you can say anything, but only if you do it.

Friction produces static electricity, and we know that electrical energy produces magnetism, and this magnetism can attract lighter things, such as small pieces of paper.

The hair has been intertwined there, easy to produce static electricity, so when rubbing with a ruler, the static electricity generated on the hair is transmitted to the ruler, then, the ruler has magnetism, however, the magnetism lasts for a very short time, you can also find it in experiments, if you use steel bars, or iron bars to rub, the generated magnetism will maintain a relatively old period of time, by the way, the steel bar is magnetized is permanent, the iron bar is magnetized is temporary, meaning, the steel bar is magnetized, then the steel bar is permanently magnetic, But the iron bar is magnetized, maybe it is magnetic today, and it is not magnetic the next day! ··

Hope it helps! ~·

Because he's an electric thing, that's why he can suck it in.

Top dog. I guess I went to school in junior high school. Alas.! Why didn't you go to school at that time?

Because pens generally have a plastic case, although the nib is metal, it will not come into contact with the hand. So when rubbing against another object, some electrons will break away or get some electrons, so it will have a positive or negative charge, because plastic is an insulator, so the charge will stay on the pen for a long time. This is what we call static electricity.

The electric charge of a charged object is composed of many charged particles, and in an electric field, one charged particle will produce an electrostatic field, so many charged particles will produce a large electrostatic field. The object being attracted, although neutral as a whole, is still composed of charged particles inside, and the nature of the electric field has a strong effect on the charged particles in it. So the object will be subjected to the action of the charged body, assuming that the charged body is positively charged, then the positive charge inside the object is repelled to the side far away from the charged body, and the negative charge is pulled into the side of the charged body, and the closer the distance is known by Coulomb's theorem, the greater the Coulomb force, so the attraction of the charged body to the object is greater than the repulsive force, so that the object is close to the charged body under the action of the electric field force.

If the charged body is negatively charged, the conclusion is the same.

Because the pen after friction produces static electricity, the pen can pick up small scraps of paper, which explains why it can pick up scraps of paper compared to rubbing. However, compared to static electricity generated by friction, it is only a short period of time, and the small scraps of paper will fall again after the static electricity is over, and it is not permanent. Except for plastic pens, combs and all plastic things can be rubbed to pick up small scraps of paper.

The pen is charged after friction (what kind of electricity it carries depends on what friction it is with), and the charged pen will attract small and light uncharged objects. The reason why it can attract small and light objects is that when it is close to the confetti, the part of the scrap that is close to the pen is induced to have an electric charge opposite to the pen, and it attracts the pen.

The pen has static electricity after rubbing, and can absorb small mass substances, such as scraps of paper, hair, etc.

The pen takes on an electric charge after rubbing.

Plastic is static after rubbing!

Because the rubber rod rubbed with fur has a negative charge, and the charged shredded paper repels each other when it is close to the rubber rod, it means that the shredded paper and the rubber rod have the same voltage, that is, the shredded paper is negatively charged

So the answer is: negative