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Ch 6 Electricity
| Term | Definition |
|---|---|
| static electricity | the accumulation of excess electric charge on an object |
| law of conservation of charge | Charge can be transferred from object to object, but cannot be created or destroyed. |
| Electric field | The area surrounding electric charge that exerts force that causes other electric charges to be attracted or repelled. |
| Conductor | a material through which electrons move easily. |
| Insulator | a material in which electrons are not able to move easily; atoms hold electrons tightly |
| Charging by contact | the process of transferring charge by touching or rubbing |
| Charging by induction | the rearrangement of electrons on a neutral object caused by a nearby charged object |
| Electroscope | a device that can detect electric charge |
| Electric current | the net movement of electric charges in a single direction (electrical flow) |
| voltage difference | the difference in electric potential energy between two points. (electrical "push") |
| electric circuit | a closed path that electric current follows. |
| resistance | The tendency for a material to resist the flow of electrons and convert electrical energy into other forms such as thermal. (measured in ohms) |
| Ohm's Law | Describes the relationship between voltage difference, current and resistance in a circuit. I = V/R |
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