Magnetism

When two south poles of magnets are brought together, they will repel each other due to their like polarity. This is because magnetic fields exert a force that causes them to push away from each other.

Rubbing a magnet along the needle in one direction will align the needle's magnetic domains and magnetize it. For stronger magnetization, repeat the process multiple times in the same direction. Be cautious when handling magnets to avoid accidental demagnetization.

The magnetic field would propagate through the material and extend itself for the length of the magnetic material in contact. As long as there is contact there is no pole present. When contact is broken the pole would be the opposite to the pole it was in contact with

If one magnet's North Pole faced another magnet's North Pole, the magnets would repel eachother, meaning they would push away from eachother. If you put a North and a South pole together, however, they would attract, or come together.

N+N= Repel

S+S= Repel

N+S= Attract

S+N= Attract

Well. I guess opposites really DO attract...

Yes, screws made of ferromagnetic materials such as iron, nickel, and steel are magnetic because these materials are attracted to magnets. However, screws made of non-magnetic materials like brass or aluminum are not magnetic.

The maximum magnetic variation on Earth can vary depending on location, but it can be as high as 180 degrees near the magnetic poles. This means that there is a complete reversal of the magnetic north and south poles at those locations.

No particular reason. The color could be ANY color, but magnet makers began dipping one pole in paint to mark the North pole, and red paint was available. Over time, it just became the color ro use.

Yes, VCRs contain magnetic heads which are used to read and write information on the magnetic tape inside the cassette. These magnetic heads generate a magnetic field that interacts with the iron oxide particles on the tape to record and play back audio and video signals.

neither. they separate because of magnetic fields. its not kinetic. its not potential. If you hold them together.. the "push" of them trying to get apart is storing some potential energy.. kind of like a spring. I guess you'd call it elastic potential energy because i dont know if there is such a thing as magnetic potential energy... hmm..

Storing magnets with unlike poles facing each other helps reduce their overall magnetic field strength and minimize any interactions that could cause them to attract or repel each other. This orientation helps prevent the magnets from being damaged or losing their magnetic properties over time.

This may happen because the molecules of the two substances do not have an affinity for each other, meaning they do not interact or attract each other. This lack of attraction can be due to differences in polarity, charge, or intermolecular forces between the two substances.

Artificial magnets were first discovered in ancient Greece in the city of Magnesia, leading to the term "magnet" to describe them. Magnetite, a natural magnetic material, was found in the region and is believed to be the source of the first artificial magnets.

The falling magnet will dislodge some air as it falls. When it hits the ground it will cause a vibration carried by the air molecules to you ear creating a bang noise. Then, depending on the force of the fall and the surface on which it lands it may, or may not crack.

Magnetism does not directly affect alpha radiation, as alpha radiation consists of positively charged alpha particles that are not influenced by magnetic fields. However, in certain cases, magnetic fields can be used to manipulate the path of alpha particles for research or experimental purposes.

No, the north side of a magnet only attracts to the south side of another magnet.

tne name of the semicircle joining the poles to poles is called merdian

A permanent magnet is a magnet which will keep its magnetism for a very long time and is difficult to change.

No, As I think a permanent magnet means they have abilities to hold the magnetism when they are magnetized. Such as Alnico permanent magnets, but in fact, they can be demagnetized,such as high temperature, hit each other,pulse waves, out magnetic field influence...What's more, different permanent magnetic material, have different abilities on holding magnetism,they can be used in different environments. you can find some details from some manufacturers website, to learn some knowledges.

That statement is not true.

Yes a magnet will attract a steel paper clip through air or water.

No, a magnetic field will penetrate glass as well... probably. Certain types of glass (which are themselves ferromagnetic) might serve to block a magnetic field.

When a magnetic field interacts with a magnetic object, it can exert a force on the object, causing it to move. This occurs because the magnetic field induces a magnetic force on the object based on the orientation and strength of the magnets involved. The object will move in response to this force, either attracting or repelling depending on the alignment of the magnetic poles.

Phosphorus is not a ferrous metal and cannot be attracted by magnet.

No, a magnet does not lose its power of attraction when it is dipped in water. The magnetic field of the magnet remains intact in water and it can still attract objects.

Cathode rays are electron beams. When they are moving in a magnetic field, they are deviated. The direction of their deflection is given by Fleming's left hand rule. The direction of deflection, current (which is the reverse of the direction of the electron beams) and field are all perpendicular to each other. Hence, the electron beam will deviate in a direction contained in a plane which is perpendicular to both the field and the electron beam.

Hence, the cathode rays are neither defleted to the north nor south pole.

Yes, the shape of the magnets can affect the magnetic repulsion between them. Different shapes can influence the magnetic field distribution and how the magnetic forces interact with each other. For example, two magnets with a larger surface area in contact will experience stronger repulsion compared to two magnets with a smaller contact area.