| A | B |
| static electricity | The buildup of electric charges on an object. |
| electric current | The flow of electric charges along a path. |
| insulator | A material that does not let heat or electrical charges move through it easily. |
| conductor | A material that lets heat or electrical charges travel through it easily. |
| circuit | A path along which electric charges can flow. |
| series circuit | An electric circuit in which the electrical charges have only one path to follow |
| parallel circuit | An electric circuit that has more than one path for the electric charges to follow. |
| electric motor | A device that changes electrical energy into mechanical energy. |
| electro magnet | Atemporary magnet caused by an electric current. |
| generator | A device that makes an electric current by converting kinetic energy to electrical energy. |
| heat | The energy that moves between objects of different temperatures. |
| friction | A force that acts between two toughing objects that opposes motion. |
| convection | The movement of heat in liquids and gasses from a warmer area to a cooler area. |
| radiation | The movement of heat without matter to carry it. |
| conduction | The movment of heat between two materials that are touching. |