| A | B |
|---|
| Circuit | A closed path through which electrons (electricity) can flow |
| Conductor | A material that allows heat or electrons to move easily through it |
| Current | The flow of electrons through a conductor, measured in amperes with an ammeter |
| Dry Cell | A power source that generates electric current by a chemical reaction; it uses a thick, pasty electrolyte in a sealed container |
| Electrical Power | The rate at which electrical energy is converted to another form of energy |
| Electric Field | A force surrounding an electron that affects anything nearby that has an electric charge; is strongest near the electron and weakens with distance |
| Electroscope | A device used to detect the presence of electric charges |
| Insulator | A material through which heat or electricity can not easily pass |
| Kilowatt-Hour | The unit of electrical power |
| Ohm's Law | Law that states electric current (I) equals the potential difference (V) divided by the resistance to current flow (R). |
| Parallel Circuit | An electrical circuit where the current flows in several separate branches |
| Potential Difference | The difference in electric potential energy between two different points |
| Resistance | The opposition to the flow of electrons through a conductor, measured in ohms with an ohmmeter |
| Series Circuit | An electrical circuit where the current flows only in one path |
| Static Electricity | The accumulation of electric charges on an object; no current flows because the electricity is motionless |
| Wet Cell | A power source that generates electric current by a chemcial reaction; it uses a liquid electrolyte |
