| A | B |
| energy | the ability to do work or make things happen |
| electrical energy | energy made available by the flow of electrons through a conductor |
| circuit | an electrical device that provides a path for electricity to flow |
| conductor | any item that allows electricity to flow through it |
| insulator | any item that does not allow electricity to flow through it |
| chemical energy | energy caused by chemical reactions; an example is food cooking |
| mechanical energy | the energy of objects in motion; an example is the motion of the windmill |
| sound energy | the energy produced from vibrating particles; an example is a drum beating |
| light energy | the energy from the sun |
| heat energy | a type of energy that comes from a burning fuel; an example is wood burning in a fireplace |