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compass needles are tiny magnets that are free to indicate the north and south poles of a magnet what do you need to do to know the magnets polaraties

Sagot :

lets say
you have a bar magnet, tie a string in the middle of the magnet and raise it up (keep objets that can atract the magnet away) then let the magnet rest in ONE direction, the north part of the magnet will point at the north and the south will point at the south
Its from my Book