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12.MA5Elect&Magnets
Term | Definition |
---|---|
electromagnetism | interaction of energy and magnetism |
charge | inbalance of electrons and protons; something is electrically charged if it has a build up of electrons (and is negatively charged) |
conduction | transfer of electrical charge through direct conduct or touching; between an uncharged and charged object |
induction | transfer of electrical charge through INDIRECT conduct No touching- rearranging of electrons but no contact; between charged and uncharged objects |
friction | transfer of electrical charge through rubbing or wiping electrons from one object to another; both uncharged objects |
current | movement of electrons |
alternating current | movement of electrons are moving in changing directions; can move long distances |
direct current | movement of electrons in one direction; short distances- batteries |
voltage | measurement of stored up electricity; potential strength of electricity available |
amperage | the measurement of current- how fast the electrical current is moving |
ohm | SI Unit that measures resistance |
resistance | something that opposes current or slows it down (anything in the circuit that is using electricity is resistance) |