Magnetism Vocabulary Mr. Ahearn 2010

Device that uses magnetic field to turn kinetic energy into eletrical Generator Device that uses magnetic field to turn kinetic energy into eletrical

Transformer Device used to increase or decrease the voltage of an alternating current

Region of space affected by Earth’s magnetic feild Magnetosphere Region of space affected by Earth’s magnetic feild

Surrounds a magnet and exerts a magnetic force on other magnets Magnetic Field Surrounds a magnet and exerts a magnetic force on other magnets

Magnet created by wrapping a current carrying wire around an iron core Electromagnet Magnet created by wrapping a current carrying wire around an iron core

Group of atoms who's fields point in the same direction Magnetic Domain Group of atoms who's fields point in the same direction

Electric current that changes its direction repeatedly Alternating Current Electric current that changes its direction repeatedly

Aurora Light display that occurs when charged particles trapped in the magnetosphere collide with Earths atmosphere above the poles

Device that transforms electrical energy into kinetic energy Motor Device that transforms electrical energy into kinetic energy

Electric current that only flows in one direction Direct Current Electric current that only flows in one direction