| Term | Definition |
| static electricity | an electrical charge that builds up on an object |
| current electricity | a steady stream of charges |
| series circuit | a circuit that only has one path for the current to follow |
| parallel circuit | a circuit that has more than one path for the electric current to follow |
| conductors | materials that let electric charges move through them easily |
| insulators | materials that do not let electric charges move through them easily |
| electron | a negative charge |
| proton | a positive charge |
| neutron | a neutral charge |
| switch | a device that opens or closes a circuit |
| magnet | an object that attracts iron and a few (not all) metals. |
| magnetic pole | the places on a magnet where the force is the strongest |
| magnetic field | the space around a magnet in which the force of the magnet acts. |
| electromagnet | a temporary magnet caused by an electric current |
| generator | a device that produces an electric current |
| electric motor | a device that changes electrical energy into mechanical energy |
| potential energy | energy due to an object's position or condition |
| kinetic energy | the energy of motion-an object moves |
| hydroelectic power | electrical energy made by uses tek kinetic energy of falling water |
| geothermal energy | Heat that comes from inside the earth |
| solar energy | the power that comes from the sun |
| chemical energy | energy stored in the arrangement of particles of matter |
| mechanical energy | makes machine parts move |