Vocabulary
Alternating current, periodically reverses direction.
AC
A dry-cell battery.
Direct current, electricity flows in only one direction.
DC
The force between two charged objects.
Electric Force
A tiny part of an atom that has a negative charge and moves around the nucleus.
Electrons
A circuit that has a break in it.
Incomplete Circuit
The ability to apply force over a distance.
Energy
A designer who tests ways to accomplish a goal or solve a problem.
Engineer
Material that prevents the flow of electricity, plastic, rubber, glass, or air.
Insulator
Not moving.
Static
Component used to reduce the flow of electricity.
Resistor
A device that produces light, either by electricity or burning oil, gas or wax.
Lamp
A circuit with all the necessary connections for electricity to flow.
Complete Circuit
The flow of electricity through a conductor.
Electric Current
One item in a circuit.
Component
A source of stored chemical energy.
Battery
What a barefoot man gets if he stepped on an electric fence.
A pair of shocks.
Material capable of transmitting energy, particularly heat and electricity.
Conductor
An incomplete circuit through which electricity will not flow.
Open Circuit
A complete circuit through which electricity flows.
Closed Circuit
An electrician's favorite flavor of ice cream.
Shock-o-late
Material such as silicon, that has less electric conductivity than a conductor but more than an insulator.
Semiconductor
Material in a lightbulb (usually a thin wire) that makes light when heated by an electric current.
Filament
Place on a component where connections are made to allow electricity to flow.
Contact Point
Device that gives off light and heat when electric current runs through a filament.
Incandescent Lightbulb