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Chapter 7 vocab
Vocabulary
| Term | Definition |
|---|---|
| Statice electicity | the accumulation of excess electric charge on an object |
| Law of conservation of charge | states that charge can be transferred from one object to another but cannot be created or destroyed |
| Conductor | material, such as copper wire, in which electrons can move easily |
| Insulator | material in which electrons are not able to move easily |
| Charging by contact | process of transferring charge between objects by touching or rubbing. |
| Charging by induction | process of rearranging electrons on a neutral object by bringing a charged object close to it. |
| Electric current | the net movement of electric charges in a single direction, measured in amperes. |
| Voltage difference | related to the force that causes electric charges to flow; measured in volts |
| Circuit | closed conducting loop through which an electric current can flow |
| Resistance | tendency for a material to oppose electron flow and change electrical energy into thermal energy and light; measured in ohm. |
| Ohm's law | states that current in circuit equals the voltage difference divided by the resistance. |
| Series circuit | circuit in which electric current has only one path to follow |
| Parallel circuit | circuit in which electric current has more than one path to follow. |
| Electrical power | rate a which electrical energy is converted to another form of energy; expressed in watts. |