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Magnet Notes –Must contain nickel, cobalt or iron –Magnets have a North Pole and a South Pole –Like poles repel –Opposite poles attract –Objects that are magnetic attract magnets

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Page 1: Magnet Notes –Must contain nickel, cobalt or iron –Magnets have a North Pole and a South Pole –Like poles repel –Opposite poles attract –Objects that are

Magnet Notes–Must contain nickel, cobalt or iron

–Magnets have a North Pole and a South Pole

–Like poles repel

–Opposite poles attract

–Objects that are magnetic attract magnets

Page 2: Magnet Notes –Must contain nickel, cobalt or iron –Magnets have a North Pole and a South Pole –Like poles repel –Opposite poles attract –Objects that are

–A magnet that always has magnetic properties is called a permanent or man-made magnet

–A magnet that is sometimes magnetic but can be turned off and on is called a temporary magnet

–A magnet that is found in the earth is called a natural magnet

Page 3: Magnet Notes –Must contain nickel, cobalt or iron –Magnets have a North Pole and a South Pole –Like poles repel –Opposite poles attract –Objects that are

Compass

• First compass developed in China

• Contains a magnetized needle

• A compass points to magnetic north

Page 4: Magnet Notes –Must contain nickel, cobalt or iron –Magnets have a North Pole and a South Pole –Like poles repel –Opposite poles attract –Objects that are

Electromagnets

• An electromagnet is a temporary magnet• The strength of an electromagnet was

most impacted by the number of batteries• The more coils the greater the strength• Electricity flow controlled by a switch• Source of magnetism is electricity (battery)


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