| A | B |
|---|
| voltage | the force or pressure needed to push electricity through a circuit. |
| electrical circuit | an electrical pathway that begins and ends at the same power source. |
| amperage | the strength or power of the electrical energy through a circuit. Also called current. |
| resistance | the force that opposes or slows the flow of the electrical current. |
| Ohm's Law | the relationship between amperage,voltage, and resistance. |
| wattage | the amount of amperage needed to run the electrical appliance multiplied by the voltage of the electrical circuit. |
| electron theory | the study of how electrons flow through an electrical circuit from the negative terminal toward the positive terminal |
| conductors | material in which electricity flows easily through. |
| insulators | material such as ceramic, rubber, or plastic that electricity will not easily flow through. |
| semiconductors | materials, such as the transistor, that can be used as either conductors or insulators. |
| superconductors | certain materials that, when cooled to very low temperatures, allow an electrical flow without resistance. |
| series circuit | a single pathway that current flows through to more than one electrical device. |
| parallel circuits | multiple pathways that electrical current flows through to individual electrical devices. |
| static electricity | a buildup of electrons that aren't in motion. |
| batteries | contain stored electricity that can be easily moved from one place to another. |
| direct current | the one-directional flow of electrons in an electrical circuit. All batteries have this flow.(DC) |
| alternating current | electrical flow that constantly changes direction. This electrical flow powers your home.(AC) |
| frequency | the number of cycles or changes in the direction of alternating current. Measured in hertz. |
| transmitter | the part of a communication system, such as a radio, that changes the sender's message into electrical impulses and sends it through the channel to the receiving end. |
| fiber optic | a type of system that uses thin, flexible glass strands or cables to transmit light over great distances. |
| laser | an instrument that produces a very powerful, narrow beam of light. |
| votage divided by resistance = | amperage |
| voltage divided by amperage = | resistance |
| amperage x resistance = | voltage |
| power = | current x voltage |
