Introduction to Magnets. Which object(s) will be attracted to a magnet?

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Presentation transcript:

Introduction to Magnets

Which object(s) will be attracted to a magnet?

What’s a magnet? A magnet is any material that attracts iron or things made from iron. Magnets exert forces on each other and are surrounded by a magnetic field.

The magnetic effects are not the same throughout a magnet. The strongest effects are near the ends of the bar magnet. Each end of the magnet is a magnetic pole. Magnetic poles are points on a magnet that have opposite magnetic qualities.

Magnets have two poles: NORTH AND SOUTH The opposite poles of magnets will attract each other, while the like poles will repel.

North and South Suppose you hang a magnet by a string so that the magnet can spin, you will see that one end of the magnet always ends up pointing to the north.

When you bring two magnets close together, each magnet exerts a magnetic force on the other magnet.

Magnet Video

Magnetic Fields EQ: How does the Earth’s magnetic field compare to that of the fields that surround a magnet and an electromagnet? SPI