| A | B |
|---|
| Ammeter | an instrument that is used to measure an electric current |
| Ampere | the basic unit on electric current, abbreviated A |
| Battery | a series of dry cells |
| Cell | a device that either used c chemical change to produce electric energy or uses electric energy to produce a chemical change |
| Charged | a word used to describe an object with more of one kind of electric charge than another |
| Closed circuit | a continuous connection of conductors from one end of an electrical source to the other |
| Conductor | a substance through which electric charge moves easilly |
| Coulomb | a unit of electric charge equal to 6.25 x 10 to the 18th charges |
| Current | a movement of electrical charges, usually due to moving electrons |
| Electricity | Energy in the form of electrons that can move alond a conductor, that can be changed into heat, light, mechanical or chemical energy |
| Electroscope | a device used for detecting electrical charge |
| Filament | the small fine wire inside a light bulb |
| Ground | an uncharged body that contains a large reservoir of electrons |
| Induction | the process of charging an object by bringing in near a charged object |
| Kilowatt-hour | a metric unit of electrical energy equal to 1000 watt-hours, abbreviated kW-h |
| Negative terminal | the part of a dry cell or battery (having excess electrons) from which electrons leave |
| Neutral | an object that has equal number of protons and electrons |
| Ohm | the SI unit of resistance |
| Open Circuit | an incomplete circuit due to a break in the continuous connection of conductors from one end of an electrical sources to the other |
| Parallel Circuit | a circuit having two or more paths through which electricity can flow |
| Positive Terminal | the part of a dry cell or battery (having a shortage of electrons) toward which electrons move |
| Resistance | the measure of how hard it is for an electric charge to move through a conductor |
| Series Circuit | an electrical circuit that contains a single path with no branches, so that the same current passes through all conductors in the circuit |
| Short Circuit | a dangerous condition that results when part of an electric circuit with the most resistance is bypassed |
| Static Charge | a positive or negative charge that is not moving |
| Volt | the SI unit of voltage, abbreviated V |
| Voltage | the amount of energy supplied per unit of charge by a cell or battery (the "push" of electrical pressure on each electron) |
| Voltage Drop | the amount of energy removed per unit of electrical charge by passing through a conductor (resistance) |
| Voltmeter | a device that measures voltage drop |
| Watt | the basic unit of electrical power in the metric system, abbreviated W |
| Electric Field | the area around a charged object that has influence on other objects |
