| A | B |
|---|
| electric current | An electric charge in motion |
| conductor | A material through which an electric charge can move easily |
| insulator | A material through which an electric charges moves with difficulty |
| series circuit | electric charge can flow in only one circular path |
| parrallel circuit | two or more paths through which electric charges may flow |
| filament | A thin, coiled whire that can get very hot without melting |
| static electricity | when positive and negative charges no longer balance |
| energy source | provides the energy to move electric charges |
| circuit | consists of the following: energy source, wires/conductors, resistors, and a switch |
| resistor | transorms energy to another form of energy |
| switch | allows the circuit to open and close |
| friction | A force that acts when 2 surfaces rub together |
