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There are several useful functions that a magnet has. Magnets attract metals, such as nickel, iron, steel and cobalt and magnets also attract magnets at opposite poles and repel magnets at like poles. Magnets also are able to change electrical energy without ever losing their own energy.

Magnetism is the force of attraction and repulsion between objects.

A magnetic field is the region around a magnetic material or moving electric charge where a magnetic force can be detected.

Every magnet has at least two points, called poles, and this is where their magnetic strength is concentrated. Poles are called north and south since they position along north-south planes.

There are a few different methods used to manufacture magnets, including:

Yes. There are a few reasons why the magnetism is a magnet can weaken. If the magnet is stored near other magnets, close to heat, close to radiation or near strong electrical currents, it may lose its strength. Neodymium magnets can become corroded if they are in an area with high humidity.

It will depend on how much magnetism the magnet lost. Most magnets can get back their original strength, unless they were exposed to extremely high temperatures.

If a magnet has been fully magnetized, that is the strongest it can be.

The strongest magnets are Rare Earth magnets.

Rare Earth magnets are a group of magnetic materials that have alloys consisting of one of more of the Rare Earth Elements. These magnets have extremely strong magnetic properties.

Alnico magnets are made mostly from aluminum, nickel, cobalt, copper, iron and sometimes, titanium. They are great for high-temperatures usages.

Ceramic magnets are composed of iron oxide and strontium. They are charcoal gray in color and usually are usually lighter and more brittle than metal alloy magnets. They also have a high electrical resistance.

Magnetic assemblies are up to 32 times stronger than a regular magnet and they are usually made from ceramic magnets.

Permanent magnets are made from alloys and alloy materials include: