Electricity Vocabulary
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35 terms
Terms | Definitions |
|---|---|
 ammeter | a device used to measure current |
| charge | an electrical property of particles that causes them to attract and repel each other |
| kilowatt | a unit of power equal to 1000 watts |
| voltmeter | a device used to measure voltage, or electrical potential energy difference |
| electrically neutral | an object that has equal amounts of protons and electrons |
| direct current | electricity that flows in one direction steadily |
| switch | a device that opens or closes a circuit |
| multimeter | an instrument for measuring the properties of an electrical circuit |
| ampere | unit used to measure electric current |
| conduction | charging by contact |
| static electricity | a build-up of charge |
| alternating current | a flow of electric charge that regularly reverses its direction (60 times per second) |
| open circuit | an incomplete electrical circuit through which no current flows |
| closed circuit | a complete path through which electric current flows |
| insulator | material through which electrons do not flow |
| conductor | material through which electrons flow freely |
| circuit | a complete pathway for electrons to flow |
| current | flows in the opposite direction as moving electrons |
| proton | positively charged particle within the nucleus of the atom |
| neutron | neutral particle within the nucleus of the atom |
| electron | negatively charged particle within the atom, but not in the nucleus |
| attraction | force that acts between unlike charges |
| repulsion | force that acts between like charges |
| friction | a method of charging objects by rubbing two objects together |
| conduction | method of charging; objects touch, allowing electrons to flow between them |
| induction | method of charging; electric charges are rearranged, no contact is necessary |
| static electricity | the build up of electric charge |
| electric/static discharge | the release of electric charge |
| electroscope | an instrument that detects electric charge |
| volts | the measurement of the difference in charges between the terminals of a battery; the power in a battery |
| parallel circuit | a circuit that has multiple pathways through which electrons can flow |
| series circuit | a circuit that has only one pathway through which electrons can flow |
| battery | a device that produces electricity by converting chemical energy to electrical energy |
| resistance | opposition to the flow of electrons; slows down the electrons in a circuit |
| ohm | unit of resistance |
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