What causes something to be come magnetized?

Answer 1

When you will rub a thing that magnet attracts on magnet than the magnetic particles will transmitted into that thing and that thing becomes magnet.For example:when you will rub a pin on magnet than it will also become magnetic and it will attract other pins also.

Answer 2

To understand this explanation you must first know:

1)magnetic fields exert force on moving electric charges

2)moving electric charges create magnetic fields

The spin of the electrons in a ferromagnet are initially unaligned, the electrons in each atom of the ferromagnet are spinning in any which direction each of them please. Magnetic fields can be created by electric charges in motion. Just like you get a magnetic field from running current through a wire. When a ferromagnet is introduced into a magnetic field the rotation of the electrons are forced into alignment perpendicular to that of the magnetic field. If you then remove the magnetic field you are left with a bunch of electrons in the ferromagnet which are all spinning in the same direction this creates a magnetic field large of enough for you to notice. In other words the magnetic field was always there to begin with but the disarray and asynchronous motion of the electrons never summed up to a large enough magnetic field to be noticed easily, once aligned their individual magnetic fields sum up. This also means that a ferromagnet can be magnetized in any direction.

Answer 3

If it can be magnetized you can heat it up past its' Currie point and let it cool down in a magnetic field. You can swipe a magnet along it in the same direction several times to magnetize it. That aligns the magnetic domains in the material.

Answer 4

It contains iron and is magnetized in the direction of the magnetic poles. This can be undone by heating the rock past a certain point.