Electromagnets, Motors, and Generators

magnetism

the force of attraction or repulsion of magnetic materials

magnetic field

a force surrounding a magnet that applies a push or pull without actually touching an object

motor

an electrical machine that converts electrical energy to mechanical energy

electric current

a continuous flow of electric charge

electromagnet

a wire in an electric circuit is wrapped around an iron core producing a magnetic field

generator

produces an electric current when a coil of wire is rotated near a magnet; converts mechanical energy into electrical energy

electromagnet diagram

motor diagram

generator diagram

circuit

a loop or path through which energy can flow

electricity

flowing electrons in a circuit

Volts, watts, and amps

Units used to measure the flow of electrons

Generator

A machine that converts mechanical energy into electrical energy

motor

a device that converts chemical energy into mechanical/kinetic energy

Electromagnet

a device that produces a magnetic field only when an electric current is passing through it

Ammeter

A device used to measure current in a circuit

current

the flow of electrons