| A | B |
|---|
| magnetism | force of attraction or repulsion of a magnetic material due to the arrangement of its atoms. |
| pole | regions of a magnet where the magnetic effects are the strongest. |
| magnetic field | Area over which the magnetic force is exerted. |
| magnetic domain | region of a material in which the magnetic fields of individual atoms are aligned. |
| magnetosphere | region in which the magnetic field of the Earth is found. |
| aurora | glowing region of air caused by solar particles that break through the Earth's magnetic field. |
| solar wind | A wind charged with particles sent out by the sun. |
| North and South | The poles of a magnet. |
| Southern Lights | aurora australias |
| Northern Lights | aurora borealis |
| electromagnet | a current-carrying wire wrapped around an iron core |
| generator | transforms kinetic energy into electric energy |
| alternating current | current alternates from positive to negative current |
| direct current | electrons flow in one direction |
| What type of current is produced by a battery? | direct current |
| voltage | is a measure of how much energy that electric charges in a current are carrying |
| transformer | are used that changes the voltage of an alternating current with little loss of energy |
| What can increase or decrease voltage? | transformer |
| motor | a device that converts electric energy to kinetic energy |
