A | B |
energy | ability to cause change in matter |
volume | loudness of a sound |
electromagnet | iron bar with a coil wrapped around it that becomes a magnet when electric current flows through it |
kinetic energy | energy of motion |
lens | piece of clear material that bends, or refracts, light rays |
electric charge | the result of a gain or loss of electrons |
potential energy | energy an object has because of its location or its condition |
electric circuit | path along which electrons flow |
electric force | attraction or repulsion of electric charges |
pitch | speed with which sound waves move` |
reflection | light bounding off an object |
electric current | flow of electrons |
insulator | material that doesn't carry electrons |
refraction | bending of light rays |
conductor | material that allows electrons to travel easily |
resistor | material that slows the flow of electrons |