Electricity Vocabulary

3. law stating that the total electric charge in an isolated system is constant
6. a switch that opens when the current in a circuit is too high
8. a complete path through which electric charge can flow
9. a device that prevents overheating due to current overload in a circuit
14. the rate at which electrical energy is converted to another form of energy
16. an electric circuit with two or more paths through which charge can flow
20. a material through which electric charge can flow easily
21. a field in a region of space that exerts electric forces on charged particles; a field produced by electric charges or by changing magnetic fields
22. the opposition to the flow of electric charges in a material

1. voltage, or the difference in electrical potential energy between two places in an electric field
2. potential difference, the difference in electrical potential energy between two places in an electric field
4. a flow of electric charge that regulary reverses its direction
5. a flow of electric charge in only one direction
7. a material that has almost zero resistance when it is cooled to low temperatures
8. a material through which electric charge cannot flow easily
10. the study of the behavior of electric charges, including how charge is transferred between objects
11. the attraction or repulsion between electrically charged objects
12. a device that converts chemical energy into electrical energy
13. the relationship of voltage, current, and resistance
15. a property that causes subatomic particles such as protons and electrons to attract or repel one another
17. the transfer of charge without contact between materials
18. the transfer of excess charge through a conductor to the earth
19. a continuous flow of electric charge