Magnetic Forces, Electric Forces, and Circuits

Vocabulary flashcards covering magnetic forces, electric forces, simple circuits, and electromagnetism based on lessons 5.1 through 5.4.

Magnetic force

A force of attraction or repulsion created by a magnet.

Magnetic field

The region around a magnetic material where magnetic force acts.

Magnetic poles

The north and south ends of a magnet where magnetic forces are strongest.

Magnetic domains

Tiny regions in a magnetic material that act like small magnets.

Electric force

A force of attraction or repulsion between charged objects.

Closed circuit

A complete circuit loop that allows electric energy to flow.

Open circuit

An incomplete circuit loop that does not allow electric energy to flow.

Electromagnet

A temporary magnet made with a current-carrying wire coil wrapped around a ferromagnetic core.

Generator

A device that uses motion between a magnet and a wire coil to produce electrical energy.

Simple circuit

A circuit containing a source of electric energy, an electric device, and an electric conductor.

Electric current

The movement of charged particles through a conductor, transferring electrical energy to a device.

Voltage

The electrical potential energy difference between two places on a circuit, measured in volts.

Conductor

A material, such as copper wire, through which charged particles move easily to conduct electricity.