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Chapter 7 vocab
vocabulary
| 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 it cannot be created or destroyed |
| conductor | a material in which electrons are able to move easily |
| insulator | a a material in which electrons are not able to move easily |
| 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 |
| electric current | the net movement of electric charges in a single direction |
| voltage difference | related to the force that causes electric charges to flow |
| circuit | a closed path that electric current follows |
| resistance | the tendancy for a material to opoose the flow of electrons, changing electrical energy into thermal energy and light |
| ohm's law | the current in a circuit equals the voltage difference divided by the resistance |
| series circuit | the current has only one lop to flow through |
| parallel circuits | contain two or more branches for current to move through |
| electric power | the rate at which electrical energy is converted to another form of energy |