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21 Cards in this Set

  • Front
  • Back

Magnet

- Any materialthat attracts iron and materials that contain iron.

Magnetic Pole

- Any magnet, no matterwhat its shape, and has two ends.

Magnetic Force

- The attraction or repulsion between magneticpoles.

Magnetic Field

- The area of magnetic force around a magnet.

Magnetic Field Lines

- Invisible lines that map out the magneticfield around a magnet.

Atom

- The smallest particle of an element that has the propertiesof that element.

Element

- Is one of about 100 basicmaterials that make up all matter.

Nucleus

- The center region of an atom.

Proton

- A particle that carriesa positive charge.

Neutron

- A particle that does notcarry a charge.

Electron

- A particlethat carries a negative charge.

Magnetic Domain

- A grouping of atoms that havetheir magnetic fields aligned.

Ferromagnetic Material

- A material that shows strong magneticproperties.

Temporary Magnet

- Amagnet made from a material that easily loses its magnetism.

Permanent magnet

- A magnet made from a material that keeps its magnetismfor a long time.

Compass

- A device that has a magnetized needle that spinsfreely.

Magnetic Declination

- Theangle between these two lines is the angle between geographicnorth and the north to which a compass needle points

Van Allen Belts

- Between 1,000 and 25,000 kilometers above Earth’s surfaceare two doughnut-shaped regions.

Solar Wind

- Is a stream ofelectrically charged particles flowing at high speeds from thesun.

Magnetosphere

- The region ofEarth’s magnetic field shaped by the solar wind.

Aurora

- A glowing region in the atmospherecaused by charged particles from the sun.