The property of attracting materials such as iron, cobalt and nickel. The strong magnetic area at both ends of the magnet is called the magnetic pole, one end is called the North Pole (N pole), and the other is called the South Pole (S pole). Tests show that the magnetic poles with the same name push each other out and the magnetic poles with the same name attract each other.
What is a magnet? At first, as the Earth rotates, its magnetic field and electric current constantly combine strongly, and the whole Earth becomes one large magnetic field. Earth minerals such as nickel, cobalt, and iron spin as the Earth rotates and become naturally occurring magnets.
Inside an atom, electrons spin around and around the nucleus. Both movements of electrons produce magnetism. But in most matter, electrons move in different directions, in a disorderly manner, and magnetic effects cancel each other out. Most substances, therefore, do not appear magnetic under normal conditions.
