| A | B |
|---|
| atom | the smallest particle of an element & building blocks of all matter |
| proton | atomic particle with a positive electric charge |
| electron | atomic particle with a negative electric charge |
| neutron | atomic particle with neither a negative nor a positive electric charge |
| static electricity | buildup of electric charges in an object |
| battery | a series of electrochemical cells that are connected to each other |
| conductor | material through which electric charge can flow easily |
| insulator | material through which electric charge does not flow easily |
| electric current | flow of electric charge through a conductor |
| direct current | current in which electrons always flow in the same direction |
| alternating current | current in which electrons constantly change direction at a regular rate |
| electric circuit | path that an electric current follows |
| series circuit | circuit in which electric current follows only one path |
| parallel circuit | circuit in which an electric current can follow more than one path |
