مغناطیس برای کودکان
Magnetism.
A magnet is an object or device that produces a magnetic field.
Magnet attracts objects made of nickel, iron and cobalt.
A magnet has 2 poles, the North Pole and the South Pole.
Opposite poles of two magnets always attract each other.
Like poles of two magnets always repel each other.
The Earth also behaves like a magnet.
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