Electricity and Magnetism 1-3 Vocabulary

an excess of positive or negative charge in an object

• electrical current

• static electricity

• magnetic field

a property of matter that can be described as positive or negative

• electric charge

• electric current

• electric force

the push or pull between

two charged objects

• electric force

• a current

• resistor

an electric charge in motion

• friction

• conductor

• electric current

a material through which an electric charge can move easily

• insulator

• conductor

• resistor

a material through which an electric charge can moves with difficulty

• filament

• resistor

• insulator

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

• static electricity

• parallel circuit

• series circuit

a circuit that has two or more parallel paths through which electric charges may flow

• parallel circuit

• electric current

• series circuit

a thin coiled wire that can get hot without melting

• filament

• magnet

• resistor

the force that acts when two surfaces rub together

• friction

• conductor

• static electricity