Does a magnet magnetize everything in comes into contact with?

Question

Hello everyone

I was wondering if a magnet magnetizes everything it comes into contact with. For example, I placed a blu ray disc near a magnet. Does it magnetize the disc?

Any response will be greatly appreciated.

Thanks.

Answer 1

Magnets do have an effect to some degree on everything but they really only have a noticeable effect on metals that contain iron (ferrous metals) and a couple of others (I think nickel is also one but don't quote me).

To have a noticable effect on something like plastic, you'd need an absolutely huge magnetic field (think MRI machine x 100).

Hope this helps.

TV

EDIT - @the buzz - Gee. Wish I had said that. You do know that copying and pasting other people's answers in order to boost your points is considered abuse don't you?