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13 Cards in this Set
- Front
- Back
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compass |
a device that has a magnetized needle that spinsfreely. |
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magnetic declination |
Theangle between these two lines is the angle between geographicnorth and the north to which a compass needle points.This angle is known as magnetic declination. |
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Van Allen belts. |
Between 1,000 and 25,000 kilometers above Earth’s surfaceare two doughnut-shaped regions called the Van Allen belts |
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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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a ferromagnetic material. |
A material that shows strong magneticproperties is said to be a ferromagnetic material |
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temporary magnet. |
Amagnet 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.D |
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magnet |
is any materialthat attracts iron and materials that contain iron. |
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magneticpole. |
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 |
Noticethe red lines, called magnetic field lines, around the magnet.Magnetic field lines are invisible lines that map out the magneticfield around a magnet. |
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