大象传媒

Poles of a magnet

A can exert a force on another nearby magnet. Magnets have two poles:

  • a
  • a

force is strongest near a magnet鈥檚 poles.

A bar magnet, with the north and south poles marked red and blue.

The rules of magnetism

Two magnets will either attract or repel each other in the following way:

  • like poles (N鈥揘 or S鈥揝) repel
  • unlike poles (N鈥揝 or S鈥揘) attract

Magnetic forces are 鈥 this means that magnets affect each other without touching.