| A | B |
|---|
| conductor | a material that conducts electrons easily |
| temperature | the average kinetic energy of all the molecules in an object |
| electric circuit | any path along which electrons can flow |
| lens | a piece of clear material that bends light rays passing through it |
| electric current | the flow of electrons |
| convection | the transfer of thermal energy through currents in a liquid or a gas |
| potential energy | energy an object has because of its condition |
| heat | the transfer of thermal energy from one substance to another |
| insulator | a material that doesn't carry electrons |
| pitch | a quality determined by the speed of vibration of sound waves |
| electromagnet | a magnet formed by the flow of electric current |
| electric charge | what an object gets when it gains or loses electrons |
| refraction | the bending of light rays |
| energy | the ability to cause changes in matter |
| electric force | the attraction or repulsion between objects with a positive or negative charge |
| radiation | the transfer of thermal energy by electromagnetic waves |
| conduction | the direct transfer of thermal energy between objects that touch |
| resistor | a material that resists the flow of electrons |
| volume | the loudness of a sound |
| reflection | light that bounces off an object |
