Science Vocab.

-an imbalance of positive or negative charges.

-an electric charge in motion

-a quality of a material that does not allow electric charge to easily flow through it

-material does not let electric current flow easily through it

-a simple circuit in which an electric charge can only flow in one path

-if one of the bulbs are out, all go out

-has two or more paths in which an electric charge can flow

-power that makes the electric charge flows

-the path through which the electric charge flows

-a coiled wire inside the light bulb made of a material with high resistance

-copper wire is insulted with plastic prevents electrical charges from touching other wires

-the circuit is closed when the switch is closed. Electric charge can flow without stopping.

-force that pushes or pulls magnetic materials that are near a magnet

-the invisible field around a magnet

-strongest at it's ends or poles

-a coil of wire wrapped around an iron core that can transform electrical energy into magnetic energy

-helps convert electric magnetic to mechanical energy

-the strength of an electromagnet can be increased by using more turns in the metal coil

-copper for a closed circuit

-a material that conducts electric current poorly

-shares his invention; a flashlight without batteries

-when a coil wire is spun around a magnet, it creates electric energy