Magnets are Used Every Day Magnets Magnets are used every day. Sometimes we can see the magnets such...

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Transcript of Magnets are Used Every Day Magnets Magnets are used every day. Sometimes we can see the magnets such...

Magnets are Used Every Day

Magnets

• Magnets are used every day.• Sometimes we can see the magnets such as

the ones we use on our fridge to hold papers.

Magnets• Sometimes we can’t see the magnets, but

they are necessary for the object to work such as in a computer’s hard drive.

• Hard disks in a computer record data on a thin magnetic coating.

Transportation

• Magnets are used in some trains. The best known is the maglev.

• Maglev means “magnetic levitation,” which means the train is suspended, or lifted, above the rail by electro-magnetic force.

Jewelry

• Magnets can be used to make jewelry. • Some necklaces and bracelets are made from

a series of linked magnets.

Junkyards

• Magnets can be used to separate magnetic metals (iron, steel, and nickel) from non-magnetic metals such as aluminum cans.

Toys

Here is a can opener.

Can you see the magnet?

Here is a compass.

Can you see the magnet?

Here is a name tag.

Can you see the magnet?

Here is a fridge.

Can you see the magnet?

Here is a washing machine.

Can you see the magnet?

Magnets are used every day…

We can see the magnets.

• Toys• Tools• Name tags• Can openers• Compasses

• We can’t see the magnets.

• Credit cards• CD players• Washing machine• Fax• Computers• Fridge doors• Electric motors• MRI machine