| A | B |
|---|
| voltage | the energy difference between 2 points in a circuit; a measure of how much energy the electrons are carrying around to the things in a circuit |
| volt (V) | a measurement of the amount of electrical push, or force, in a circuit |
| voltmeter | a device used to measure voltage |
| cell | a device in which chemical potential energy is transformed into electrical energy |
| battery | 2 or more cells connected together |
| resistance | the ability of a substance to reduce the flow of electric current ; a measure of how hard it is for the electrons to travel through a part of the circuit; measured in ohms (Ω) |
| *electrode | an electrical conductor through which electrons enter or leave a cell; usually made of metal or carbon |
| *electrolyte | a liquid or paste that conducts electricity within a cell or battery |
| *terminal | point at which the current enters or leaves the cell |
