| A | B |
|---|
| electromagnet | an iron bar with a coil wrapped around it that becomes a magnet when electric current flows through it |
| electric charge | the result of a gain or loss of electrons |
| volume | loudness of a sound |
| electric force | attraction and repulsion of electric charges |
| lens | piece of clear material that bends or refracts light rays |
| kinetic energy | energy of motion |
| potential energy | energy that an object has because of its location or its condition |
| electric current | flow of electrons |
| refraction | bending of light rays |
| conductor | material that allows electrons to travel easily |
| electric circuit | path along which electrons flow |
| insulator | material that doesn't carry electrons |
| reflection | light bouncing off an object |
| pitch | speed with which sound waves move |
| resistor | material that slows the flow of electrons |
| energy | ability to cause change in matter |
| conduction | direct transfer of heat between objects |
| convection | mixing of gas or liquid causes heat to transfer |
| radiation | when electromagnetic waves transfer thermal energy |
| heat | transfer of thermal energy |
| temperature | average kinetic energy of the molecules in an object |
