Train analogy You are going to compare electricity to a train. Include such concepts as coulombs, joules, volts, current, amps, series, conductor. You will draw and label a picture, and explain each aspect of your picture as it relates to how electricity works. The explanation should be written using complete sentences, and detailed to show your understanding of how electricity works. Coulomb-Train A number of electrons that carries energy. A unit of charge. Can carry small amounts of energy or large amounts. Joules-Coal 1 volt is equal to 1 joule of energy per coulomb. The voltage tells how many joules per coulomb. Current-Speed of train Current is how many coulombs per second are passing a single point. This is measured in Amperes (Amps) Conductor-Track A conductor is a path for the electric current to follow. Metals are usually good conductors. Series Circuit-The train’s route A circuit where the electric current has 1 path to follow, to and from the energy source. Power source (Battery)-The coal loading station Provides the energy, (joules) to the coulombs. Resistor-Utility plant Resistors slow the current/reduce the voltage to be used as energy to power something. Switch-Draw Bridge Starts and stops the flow of the current by putting a gap in the circuit.