Why are some objects magnetic and others are not?

Answer 1

It all depends on the way in which the iron's 'domains' are aligned. Iron is inherently magnetic as a material, but can become demagnetized as time goes on, due to sudden impact or when affected by another magnetic source. For iron to become magnetized 'domains' need to be in parallel with each other so the magnetic field created all flows in the same direction. An unmagnetized iron source has all of its domains misaligned A brief explanation of domains are a series of positive and negative charged atomic particles within the iron itself which behaves much like tiny magnets themselves.

Answer 2

The "magnitized" iron will have domains aligned to Earth's magnetic field. These magnitized iron will have poles and act like magnets. Some other iron do not behave as magnets because their domains are randomly oriented. This means that the domains do not align and will not act like magnets. This is also the same for other objects that don't behave like magnets.

Answer 3

If the iron atoms are aligned then the object is magnetic,

if they are randomly oriented then it is not.

How the object was manufactured may be the cause of the difference,

but it always possible to intentionally either magnetize OR demagnetize an object.

Answer 4

Objects are magnetic because of the alignment of their atoms. Materials like iron, nickel, and cobalt have unpaired electrons that align in the same direction, creating a magnetic field. Other materials lack this alignment, so they are not magnetic.

Answer 5

Because their domains are lined up or not.

Answer 6

Because it may or may not contain they mineral magnetite (Which is magnetic).

Answer 7

cause they are broken in half..