| A | B |
|---|
| Alternating Current (AC) | Current that changes direction on a regular time interval. |
| Direct Current (DC) | Current that only moves in one direction. |
| AC Power Adapter | Converts alternating current to direct current. |
| Capacitor | A device used in circuit to temporarily store electricity. |
| Charge | The condition of having an excess or deficiency of electrons. |
| Conductor | Any material that allows electrons to flow through it. |
| Current | The flow of electrons from one place to another. |
| Diode | A device used to limit the flow of electricity to one direction. |
| Insulator | A material that does not let electrons flow through it. |
| Switch | The control unit placed in a circuit that provides the ability to open or close the circuit. |
