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Published byAllen West Modified over 9 years ago
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Magnet: any material that attracts iron, or any material containing iron Magnetic Pole: one or two points such as the ends of a magnet, that have opposing magnetic qualities. Magnetic Force: the force of attraction, or repulsion generated by moving or spinning electric charges
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The North and South poles of magnets ◦ Tiny groups of atoms that can line up ◦ In materials such as iron, nickel, and cobalt
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Ferromagnets: Naturally occurring magnet with domains that can be aligned. ◦ Example: magnetite Electromagnet: made by sending an electric current through a wire that is wrapped around an iron core. Temporary Magnet: magnet that only holds its magnetic charge for a short time. ◦ These magnets are usually made of soft iron Refrigerator magnets Permanent Magnets: magnets that hold their magnet charge for much longer periods of time
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Earth is a giant magnet ◦ The core is made of molten iron ◦ Travelers have used a compass to help the find their way for over 2000 years.
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Draw a Venn Diagram
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