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21 Cards in this Set
- Front
- Back
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compass |
a compass for navigation. Acompass is a device that has a magnetized needle that spinsfreely. |
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magnetic declination |
This angle is known as magnetic declination. |
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• Van Allen belts |
above Earth’s surfaceare two doughnut-shaped regions called the Van Allen belts. |
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• solar wind |
The solar wind is a stream ofelectrically charged particles flowing at high speeds from thesun. |
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magnetosphere |
Earth’s magnetic field shaped by the solar wind is called themagnetosphere. |
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• aurora |
A glowing region in the atmospherecaused by charged particles from the sun is called anaurora. |
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atom |
All matter is made up of atoms. Anatom is the smallest particle of an element that has the propertiesof that element. |
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Element |
An element is one of about 100 basicmaterials that make up all matter. |
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Nucleus |
The center region of an atom iscalled a nucleus |
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Proton |
. A proton is a particle that carriesa positive charge. |
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Neutron |
A neutron is a particle that does notcarry a charge |
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Electron |
An electron is a particlethat carries a negative charge |
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Magnetic Domain |
A grouping of atoms that havetheir magnetic fields aligned is known as a magnetic domain. |
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Ferromagnetic Material |
A material that shows strong magneticproperties is said to be a ferromagnetic material. |
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Temporary Magnet |
magnet made from a material that easily loses its magnetism iscalled a temporary magnet. |
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Permanent Magnet |
A magnet made from a material that keeps its magnetismfor a long time is called a permanent magnet. |
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Magnet |
A magnet is any materialthat attracts iron and materials that contain iron. |
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magnetic pole |
Any magnet, no matterwhat its shape, has two ends, each one called a magneticpole. |
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magnetic force |
The attraction or repulsion between magneticpoles is magnetic force. |
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magnetic field |
The area of magnetic force around a magnet isknown as its magnetic field. |
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magnetic field lines |
Magnetic field lines are invisible lines that map out the magneticfield around a magnet. Magnetic field lines spread outfrom one pole, curve around the magnet, and return to theother pole. |
