| A | B |
|---|
| electric current | the rate at which electric charges pass through a given area |
| direction of current | opposite electron flow |
| resistance | the opposition of a material or device to the movement of electric current |
| factors for resistance | length, cross-sectional area, material, temperature |
| Ohm's Law | V=IR |
| Battery | Converts chemical energy to electrical energy |
| Generator | Converts mechanical energy to electrical energy |
| Direct Current | The current always flows in the same direction |
| alternatinc current | the current direction switches back and forth very quickly |
| electric power | P=IV |
| kilowatt-hour | a unit used to measure the electrical energy used |
| schematic diagram | a representation of a circuit that uses symbols and lines to represent different components |
| electric circuit | a set of electrical components connected so that they provide a complete path for the movement of charges |
| short circuit | a wire connecting two parts of a circuit so that no load is between the terminals of a battery |
| load | a bulb or a resistor in a circuit |
| series | two ore more components of a circuit with one path for the current |
| parallel | two or more components of a circuit that provide separate paths for the current with common junctions |
| equivalent resistance | the total resistance of a set of components in a circuit |
