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MAGNETISM SOL 4.3

MAGNETISM SOL 4.3. By: Mrs. Nicholson. MAGNETS. Magnet- an object that pulls iron and steel things to it Magnetism- the force around a magnet Magnetic Field- area round a magnet where the force acts. MAGNETIC POLES. Pole- a place on a magnet where the magnetism is the strongest

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MAGNETISM SOL 4.3

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  1. MAGNETISMSOL 4.3 By: Mrs. Nicholson

  2. MAGNETS Magnet- an object that pulls iron and steel things to it Magnetism- the force around a magnet Magnetic Field- area round a magnet where the force acts

  3. MAGNETIC POLES • Pole- a place on a magnet where the magnetism is the strongest Magnets have 2 Poles North & South They repel and attract. Like poles repel. Opposite poles attract. North poles attract to South poles. North poles repel North poles.

  4. COMPASS • A small magnet where the magnetism is the strongest • Always points NORTH

  5. ELECTROMAGNET • Electromagnets are made by sending electricity through a wire coil wrapped around an iron rod. • The basic idea behind an electromagnet is extremely simple: By running electric current through a wire, you can create a magnetic field • They are used in telephones, doorbells or to lift heavy iron and steel.

  6. Temporary magnets are objects that can be magnetized by a magnetic source but lose their power after the source is removed. This happens when a paperclip becomes magnetic as it touches a permanent magnet. Permanent magnets keep their magnetism Temporary vs. Permanent

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