Electric Circuits
Key Terms
Electric Charge - A property of electrons and
protons; electrons carry a negative charge, and
protons carry a positive charge
Electric current - The flow of electric charges
through a material
Electric circuit - A complete path through which
electric charges can flow
Key Terms
Conductor - A material through which electrons
move freely, forming an electric current
Insulator - A material through which the charges of
an electric current are not able to move
Resistor - A device in an electric circuit that uses
electrical energy as it interferes with the flow of
electric charge
Key Terms
Resistance - The opposition to the movement
of electric charges flowing through a material
Superconductor - A material that has no
electrical resistance