| A | B |
|---|
| The unit for measuring charge | is the coulomb |
| All solid materials are charged | by the transfer of electrons |
| Allowing charge to flow into Earth's surface | is called grounding |
| Under certain conditions air becomes a conductor | The type of conductor is called plasma |
| Storm clouds form when humid warm air rises | to meet a colder air layer |
| Michael Faraday | 1791 - 1867 |
| An enclosure of conducting material | is now called a Faraday cage |
| Resistance slows down the flow of | electrons and transforms electrical energy |
| Resistance is measure in | Ohms |
| Voltage equals current | times resistance |
| Georg Ohm | 1789 - 1854 |
| Any electrical component having electrical resistance | transforms electrical energy |
| Resistors are used to control | current and voltage in electrical circuits |
| Materials that have almost zero resistance | are called superconductors |
| Each load in a parallel circuit | must have the same voltage |
| The total resistance of the circuuit is decreased | when the resistors are placed in parallel |
| A strain gauge measures the | bend in an object |
| One joule of potential electrical energy | transformed in one second is one watt |
