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ElectricLSH
Electricity Unit Vocabulary
| Term | Definition |
|---|---|
| direct current | current that flows in one direction |
| alternating current | current that changes direction regularly |
| series circuit | a circuit in which all current (electrons) flows through a single path. |
| parallel circuit | a circuit in which there is more than one path for current. |
| electric power | the rate at which electrical energy is used |
| Ohm's Law | current equals voltage divided by resistance |
| terminal | points where electrons leave or enter a battery. |
| wet-cell battery | electric power source with a liquid center. |
| dry-cell battery | electric power source with a dry or pastelike center . |
| electricity | flow of electrons |
| static electricity | build up of electrical charges |
| electric current | movement of electrons from one place to another |
| ampere | the unit used to describe how much electric current flows through a wire |
| ampere | amp |
| circuit | a path for electric current |
| closed circuit | a complete, unbroken path for electric current |
| open circuit | an incomplete, or broken path for electric current |
| conductor | material through which electricity passes easily |
| conductor | silver, gold, aluminum, and copper |
| insulator | material through which electricity does not pass through easily |
| insulator | plastics, rubber, wood, and glass |
| resistance | measure of how easily electric current will flow through a material |
| Ohm | the unit used to measure resistance |
| electromotive force | the push that keeps the current (electrons) flowing in an electric current |
| volt | the metric unit used to measure electromotive force that tells the amount of push |
| voltage | the energy that a power source gives to electrons in a circuit |
| battery | a source of voltage that changes chemical energy into electrical energy |
| Ohm's Law | I = V/R |
| electric power | the rate at which electrical energy is used |
| Kilowatt-hour | a unit of electrical energy; the amount of energy a 1,000-watt bulb uses when left on for 1 hour |