Electric Circuits

3. A stream of charged particles, such as electrons, moving through an electrical circuit, conductor or space
6. A device used to measure the flow of electrons
7. The build up of electric charge on a surface
9. The parts of an electric circuit (e.g. light blub, battery)
11. An object or type of material that allows the flow of charge
12. A device used to measure the potential difference of a component

1. The difference in electric potential energy between two sides of the component
2. An electrical current that is uni-directional, so the flow of charge is always in the same direction
4. A measure of the opposition to current flow in electric circuits
5. Energy resulting from the flow of charged particles such as electrons
8. An object or type of material that does not allow electric current to flow freely
10. A useful source of electricity