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magnetism
| Question | Answer |
|---|---|
| material that attracts or repels other materials/fundamental form of some forms of matter | magnetism |
| ability of a material to attract lines of force or how susceptable matter is to become magnetized | magnetic permeability |
| how long matter will hold magnetism | magnetic retentivity |
| magnetic permeability and magnetic retentivity have what kind of relationship | indirect |
| lines of force within a magnet run which direction | south to north |
| lines of force outside a magnet run which direction | north to south |
| what are the units of measurement for magnetic field of strength | *Gauss *Tesla(SI)=10,000 G |
| material unaffected when in a magnetic field(wood, glass, plastic) | nonmagnetic |
| strongly attracted by magnets(iron, cobalt, nickel) | ferromagnetic |
| slightly attracted by magnets(mri contrast) | paramagnetic |
| weakly repelled by magnet(beryllium, bismith, lead) | diamagnetic |
| what are the 3 classifications of magnets | *natural(earth, lodestone) *artificial(bar magnet) *electromagnet(wire wraped around iron core/locks on xray tube or fire doors) |
| lines of force/indicate direction for magnetic force | magnetic field |
| accumulation of dipoles | magnetic domain |
| each end of a magnet has ______but _______ charge | equal, opposite |
| ________ charged particle in motion creates a _______ field which is ________ to the motion of e- | any, magnetic, perpendicular |
| _______ # of e- creates a magnetic force field | odd |
| source of electromagnetic force(fundamental force measured in volts) discovered in 1700's by Luigi Galvani | battery |
| what is the largest magnet | earth |
| every magnet has ______ and _______ pole, this is know as _______ | north, south, dipole |
| like poles ______; unlike poles _______ | repel, attract |
| ________ material can be magnetized when in an external magnetic field | ferromagnetic |
| intensity of field is ________ related to magnetic pole strength and ________ related ot distance squared | directly, indirectly |
Created by:
bigad1982
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