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Chapter 7
Vocab
| Term | Definition |
|---|---|
| static electricity | 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 an 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. |
| 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 ohms. |
| Ohm's Law | states that the current in a 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 at which electrical energy is converted to another form of energy; expressed in watts. |
| charging by induction | process of transferring charge between objects by touching or rubbing |