MAGNETISM

• A class of physical phenomena
• that includes forces exerted by
• magnets on other magnets

MAGNETS

• A material or object that produces
• a magnetic field

TEMPORARY MAGNETS

• Objects that become like a regular
• magnet if it's touching something magnetic

PERMANENT MAGNETS

• An object made from material
• that is magnetized and creates
• its own persistent magnetic field

ELECTROMAGNETS

• A type of magnetic in which the magnetic
• field is produced by electric current

SUPERCONDUCTORS

• A substance capable of becoming
• superconducting at sufficiently low temperatures

4 FACTS ABOUT MAGNETS

• North poles point North, South point South
• Like poles repel, unlike poles attract
• Magnetic forces attract only magnetic materials
• Magnetic forces act at a distance

5 OTHER PLANETS THAT HAVE MAGNETIC FIELDS

• Earth, Jupiter, Saturn, Uranus, Neptune

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10 USES OF MAGNETS

• Magnetism is used in MRI'S
• You can hold something up on the fridge with a magnet
• Magnetism helps keep our currency free of fake money

MORE USES OF MAGNETS

• Washing machines, generators, electric motors,
• Loudspeakers, computer hard drives, telephones

HOW DO MAGNETS MAKE LIFE EASIER OR BETTER?

• Magnets make things a lot simpler, like if we didn't
• have magnets we probably wouldn't be where we are
• today as far as technology goes.