| A | B |
| Circuit | A closed path through which a continuous charge can flow |
| Voltage source | Batteries or Power Plant |
| Open Switch | electricity will not flow |
| Closed Switch | electricity will flow |
| Conductor | Typically a metal wire that connects the voltage to the electrical device |
| Resistor | an electrical device that slows the flow of a charge in a circuit |
| Fuse | A safety device that opens a circuit when there is too much current flowing through it. |
| Series Circuits | A circuit in which current follows a single path. |
| Parallel circuits | a circuit in which current follows more than one path |