| AMPS | | The unit of potential difference |
| VOLTMETER | | A device that uses a chemical reaction to generate electricity |
| RESISTOR | | The rate at which work is done. The product of current x voltage |
| WATTS | | The unit of electrical power |
| FILAMENTBULB | | An instrument for measuring electric current |
| RECHAREABLE | | An electronic component designed to produce a known resistance |
| TRANSFORMER | | The unit used to measure electric current |
| CIRCUIT | | This device converts kinetic enrgy into electrical energy |
| SUPERCONDUCTIVITY | | Reverses the direction of current in a motor |
| VOLTAGE | | The property of materials to resist the flow of electrons |
| FUSE | | Electricity produced from water heated by underground rocks |
| LIGHTDEPENDENTRESISTOR | | An electronic component whose resistance varies with light intensity |
| ELECTROMAGNETICINDUCTION | | An instrument for measuring the potential difference across a component |
| RESISTANCE | | This resource can be used to generate electricity using large turbines with blades located in high places |
| VOLTS | | A system of cables which transports electricity around the UK |
| PARALLEL | | Sources of energy which can be replaced |
| MAGNET | | Steps up or steps down voltage |
| WIND | | A property of materials that have no resistance to electric current at low temperatures |
| OSCILLOSCOPE | | Electricity produced by the downhill flow of water |
| DYNAMO | | Used on a bicycle to generate electricity |
| GEOTHERMAL | | A battery which is able to have its energy replaced |
| GENERATOR | | An electronic component whose resistance varies with temperature |
| SANKEYDIAGRAM | | A lighting device whose resistance increases as the voltage increases |
| SOLARCELL | | Electricity produced by the fission of uranium atoms |
| MOTOR | | The generation of an electric current by passing a wire through a magnetic field |
| GREENANDYELLOW | | An instrument for analysing different electric current |
| TIDAL | | This device converts electrical energy into kinetic energy |
| POWER | | The colours of a plugs earth wire |
| HYDROELECTRIC | | A type of circuit in which all the components are connected in one loop |
| CURRENT | | The ratio of useful energy obtained from a device, compared with energy put in to it |
| EFFICIENCY | | A complete loop, containing electrical components |
| DRYCELL | | A scientific way of drawing the efficiency of energy transfers |
| THERMISTOR | | A type of train moved by electro magnets |
| NATIONALGRID | | The value of the potential difference between two points in a circuit |
| SPLITRINGCOMMUTATOR | | A magnetised piece of metal surrounded by an electric field |
| MAGLEV | | A circuit where components are connected in a number of interconnected loops |
| AMMETER | | The unit used to measure resistance |
| BATTERY | | A device which is able to transform light energy into electrical energy |
| OHMS | | The ability to do work |
| ENERGY | | The most common type of battery |
| NUCLEAR | | Electricity produced by the movement of water between tides |
| RENEWABLE | | An electrical safety device containing a thin piece of wire |
| SERIES | | A material which does not conduct electricity |
| INSULATOR | | The rate of flow of electrons |