The green hornet 4th grade test
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Created by:
brandyfletcher on October 17, 2011
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14 terms
Terms | Definitions |
|---|---|
 resistance | a measure of how much a material opposses the flow of eletric current and changes electric current into heat energy |
| conductor | a material through which electric current passes easily |
| insulator | a material through which electric current does not pass easily |
| series circuit | a circuit that connects several objects one after another to that current flows ina single path |
| parallel circuit | a circuit that connects several objects in a way that the current for each object has its own path |
| magnet | anything that pulls iron, steel and certain other metals to it |
| magnetism | the force around a magnet |
| magnetic field | the space around a magnet where magnetism acts |
| pole | a place on a magnet where magnetism strongest |
| compass | a small magnet that can turn freely |
| generator | a machine that uses an energy source and a magnet to make electricity |
| electromagnet | a magnet made when an electric current flows through a wire |
| closed/complete circuit | an electric circuit providing an uninterrupted, endless path for the flow of current |
| open/incomplete curcuit | an incomplete electrical circuit in which no current flows |
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