Standard 6.3 Explain how objects like earth and metals can be permanent or temporary magnets.
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| Domain of object that is SOMETIMES magnetic |
Why are some materials more magnetic than others?
Different objects have different sets of domains, or group of atoms, that determine whether the object is magnetic all the time, sometimes, or never. If an object is always magnetic it means that its domain is lined up and that the electrons are all moving in a uniform motion. This then causes there to be a magnetic field because we know that moving charges = magnetic field. This uniform magnetic field is the strongest force and causes the object to be magnetic ALWAYS.
Different objects have different sets of domains, or group of atoms, that determine whether the object is magnetic all the time, sometimes, or never. If an object is always magnetic it means that its domain is lined up and that the electrons are all moving in a uniform motion. This then causes there to be a magnetic field because we know that moving charges = magnetic field. This uniform magnetic field is the strongest force and causes the object to be magnetic ALWAYS.
Objects like paperclips and paper on the other hand contain different domains. A paperclip is magnetic sometimes because it's domain is composed, but not lined up (in the visual above you can see that the sets of atoms are paired but are not in order). This causes their to magnetic fields rotating in different directions, and minimizes its magnetic force. Paper on the other hand is NEVER magnetic. Its domain is scattered completely and contains no magnetic-domain.
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