MAGNETISM History, Magnetic Poles and Domains Objective: To understand magnetic properties.
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Transcript of MAGNETISM History, Magnetic Poles and Domains Objective: To understand magnetic properties.
![Page 1: MAGNETISM History, Magnetic Poles and Domains Objective: To understand magnetic properties.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649ed05503460f94bdee34/html5/thumbnails/1.jpg)
MAGNETISMHistory, Magnetic Poles and Domains
Objective:To understand magnetic properties
![Page 2: MAGNETISM History, Magnetic Poles and Domains Objective: To understand magnetic properties.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649ed05503460f94bdee34/html5/thumbnails/2.jpg)
MAGNET- ANY MATERIAL THAT ATTRACTS IRON OR THINGS MADE OF IRON
KINDS of MAGNETS
PermanentMagnets that are able to attract iron for a long period of time
TemporaryMagnets that are can be turned on and off or only last for a very short time
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Will my magnet stick to ...... ?
Bad news for tuba players. Magnets do not stick to brass, stainless steel, aluminum, copper or tin
-- so you cannot display them on your tuba, stainless steel fridge, Pepsi or vegetable soup cans.
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You can, however, display them on most other refrigerators, washers, dryers, dishwashers, steel file cabinets, toasters, lockers, and other steel or iron objects.
Magnets stick to iron and steel
![Page 5: MAGNETISM History, Magnetic Poles and Domains Objective: To understand magnetic properties.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649ed05503460f94bdee34/html5/thumbnails/5.jpg)
Magnetism How does a magnet work?
• Magnetism is the force of attraction or repulsion of a magnetic material due to the arrangement of the electrons.
Groups of electrons are
called domains If the domains can line up, that determines if the object is magnetic.
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Which domain is magnetic?
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Understanding domains
• If these are electrons in a material, is the material magnetic? Why or why not?
![Page 8: MAGNETISM History, Magnetic Poles and Domains Objective: To understand magnetic properties.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649ed05503460f94bdee34/html5/thumbnails/8.jpg)
Understanding domains
• If these are electrons in a material, is the material magnetic? Why or why not?
![Page 9: MAGNETISM History, Magnetic Poles and Domains Objective: To understand magnetic properties.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649ed05503460f94bdee34/html5/thumbnails/9.jpg)
Opposite poles attract-Electrons moving in same direction
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Magnets break apart to make smaller magnets
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How does a magnet work?
Homemade Compass
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Make a compass