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MagnetismElectricity

Vocabulary for magnetism, electricity and their interrelationship

TermDefinition
attract unlike poles of magnets-unlike electrical charges
repel Like poles of magnets - Like electric charges
Electric Force The attraction or repulsion between charged objects.
Electric Circuit A closed, conducting loop that electric charges flow continuously through.
Electric Current The flow of electric charge.
An electric circuit contains a source of electrical energy, a conductor of the electrical energy (wire) connected to the energy source, and a device transforms the electrical energy to light, sound, heat, and mechanical motion.
Conductor A material in which electrons can move easily from place to place. Examples are copper, iron, steel and silver
Insulator A material in which electrons cannot move easily from place to place. poor Examples are wood, styrofoam and air.
Resistance The measure of how difficult it is for electrons to flow through a material.
Magnetism The force of attraction or repulsion of magnetic materials.
Magnetic Field The space around a magnet where the magnetic force, a push or pull, is applied without actually touching an object.
Magnetic Domain A group of atoms with their magnetic fields pointing in the same direction.
Generator Produces an electric current when a coil of wire wrapped around an iron core is rotated near a magnet. Transforms mechanical to electrical energy.
Turbine Huge wheel that rotates when pushed by water, wind, or steam.
Electromagnet Formed when a wire in an electric circuit is wrapped around an iron core producing a magnetic field. The magnet that results loses its magnetism if the electric current stops flowing.
Electric Motor Uses an electromagnet to create movement in a machine. Transforms electrical energy to mechanical energy.
Created by: 0111marjorien