| Term | Definition |
|---|
| electricity | form of energy caused by moving electrons |
| electron | atomic particle with a negative electric charge |
| neutron | atomic particle with neither a negative or positive electric charge |
| proton | atomic particle with a positive electric charge |
| conductors | materials that allow electric charges to flow through them easily |
| insulators | materials that prevent electric charges from flowing through them easily |
| alternating current | current in which electrons change direction at a regular rate |
| direct current | current in which electrons always flow in the same direction |
| electric current | flow of electrons through a conductor |
| battery | series of electrochemical cells connected together |
| electrochemical cell | device that changes chemical energy into electrical energy |
| electrode | positive or negative pole of an electrochemical cell |
| electrolyte | substance that dissolves in water to form a conducting solution |
| electric circuit | path that an electric current follows |
| series circuit | circuit in which electric current follows only one path (share electrical pressure) |
| parallel circuit | circuit in which electric current can follow more than one path |
| ampere | unit used to measure electric current |
| electromotive force, EMF | force that makes electrons move |
| ohm | unit used to measure resistance |
| resistance | opposition to the flow of electrons |
| volt | unit used to measure electromotive force |
| ohm's law | current in a wire is equal to the voltage divided by the resistance |
| circuit breaker | switch that opens a circuit if too much current is flowing |
| fuse | wire that melts an breaks a circuit if too much current is flowing |
| generator | machine that makes electricity |
Combine with other sets
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