| A | B |
|---|
| energy | The ability to cause changes in mater |
| kinetic energy | The energy of motion,or energy in use |
| potential energy | The energy an object has because of its place or its condition |
| electric charge | the charge obtained by an object when it gains or loses electrons |
| electric force | The atraction or repulsion of objects due to their charges |
| electric current | The flow of electrons from negatively charged objects to positively charged objects |
| conductor | A material that conducts electrons easily |
| electric circuit | The path along which circuits electrons can flow |
| insulator | A material that does not carry electrons |
| resistor | A material that resists the flow of electrons in some way |
| electromagnet | A temporary magnet made by passing electric current through a wire coiled around an iron bar |
| reflection | The light energy that bounces off objects |
| refraction | The bending of light rays when they pass through a substance |
| lens | A piece of clear material that bends,or refracts,light rays passing though it |
| pitch | An element of sound determined by the speed at which sound waves move |
| volume | 1(measurement)The amount of space that an object takes up 2(sound) The loudness of a sound |
| temperature | The average kinetic energy of all the molecules in an object |
| heat | The transfer of thermal energy from one substance to another |
| conduction | The direct transfer of heat between objects that touch |
| convection | The transfer of heat as a result of the mixing of a liquid or a gas |
| radiation | The transfer of thermal energy by electromagnetic waves |
