Term
| Classification of Materials |
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Definition
| Ferromagnetic,Dimagnetic,Paramagnetic |
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Term
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Definition
| All materials that will become magnets,materials that will change magnetic fields,materials that will be changed by magnetic fields when at a certain temp.,Iron/Steel/Nickel/Cobalt,Opposite of dimagnetic. |
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Term
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Definition
| NO magnetic potential, Copper/glass/wood/plastic,Opposite of ferromagnetic |
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Term
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Definition
| Some magnetic potential-weak attraction, Gadolineus (for MRI) |
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Term
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Definition
| Natural,Artificial,Electromagnets. |
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Term
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Definition
| Lodestone:material that has laid in the earths magnetic field long enough to become magnetized; to become ferromagnetic. |
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Term
| Earths magnetic field is measured in what unit? |
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Definition
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Term
| How are artificial magnets produced? |
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Definition
| Expose ferromagnetic material to magnetic field. This is magnetic induction., Electrons will change their organization. |
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Term
| Most commonly used material for creating magnets? |
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Definition
| "Alnico" - alloy of aluminum,nickel,and cobalt. Can be made highly magnetic. |
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Term
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Definition
Wire wrapped around a ferromagnetic "rod" or nail (current carrying wire coil with an iron core).
Can be turned on and off.
Requires a power source (electricity or battery). |
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Term
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Definition
Polarity
Unlike attract,like repulse
Magnetic fields can creat magnets
Relationships (direct/inverse) |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Dipoles - north & south. Field lines travel North to South. Magnetic force occurs in lines. |
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Term
| Current carrying wires have a magnetic field that is proportional to what? |
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Definition
| what is happening to the electric current. |
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Term
| Organization of electrons |
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Definition
| Any charge in spin will produce a magnetic field. Each electron has its own magnetic field; the organization of these electrons will ultimatley produce a larger magnetic field. |
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Term
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Definition
| Magnetized material has its electrons reorganized. |
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Term
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Definition
Experimented with a compass & current carryig wire.
Found that there is a magnetic field around a current-carrying wire.
How? Becuase compass shows presence of magnetic field. |
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Term
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Definition
| Found that a current can be induced by a moving magnet (magnetic field). |
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