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1. The magnetic field is invisible.
2. Magnets attract materials such as iron, steel, nickel, and cobalt. some of the strong ones can hold up a car in the air.
3. Magnets have two poles, the North Pole and the South Pole.
4. The North Pole of a Magnet will attract only the South Pole of other Magnet, and it will repel other magnet’s North Pole.
5. When you heat a magnet, it can lose its magnetism force.



6. If you coil an iron and run electricity through the coil, the iron will act as a magnet.
7. Compass is a very delicate instrument, and yet they can detect the earth’s magnetic field (which is different than the north pole of the earth); the magnetic compass was used hundreds of years ago by Chinese sailors.
8. You can make a new magnet by rubbing a magnet on iron in the same direction as the magnet.
9. Speakers in your stereo system use a permanent magnet to convert electric power into mechanical energy, which is the paper’s movement in the speaker which creates the sound.
10. The way a generator produces electricity is by converting the motor’s mechanical energy by moving a conductor through a magnetic field.

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