| A | B |
|---|
| atom | the smallest particle of an element that can exist |
| charge | an amount of electricity |
| proton | atomic particle with a positive charge |
| electron | atomic particle with a negative charge |
| neutral | having the same number of electrons and protons |
| positive charge | excess of protons |
| negative charge | excess of electrons |
| repel | force back |
| static electricity | kind of electricity in which charges are stationary |
| current electricity | kind of electricity in which charges are moving |
| lightning | example of static electricity |
| capacitor | device that stores an electric charge |
| electric current | movement of electricity along a path |
| insulator | material that does not conduct electricity |
| conductor | material that does conduct electricity |
| dielectric | insulating material in a capacitor |
| electrostatic | type of charge built up in the dielectric of a capacitor |
| electric circuit | path along which an electric current flows from start to finish |
| AC | kind of current coming from home electrical outlets |
| DC | kind of current provided by batteries |
