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20 Cards in this Set
- Front
- Back
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Magnet |
A magnet is any material that attracts iron and materials that contain iron |
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magnetic pole |
The attraction or repulsion between magnetic poles is magnetic force |
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magnetic field |
The area of magnetic force around a magnet is known as its magnetic field |
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Magnetic field lines |
Magnetic field lines are invisible lines that map out the magnetic field around a magnet |
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atom |
atom is the smallest particle of an element that has the properties of that element |
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element |
An element is one of about 100 basic materials that make up all matter |
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nucleus |
The center region of an atom is called a nucleus |
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proton |
A proton is a particle that carries a positive charge |
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neutron |
A neutron is a particle that does not carry a charge |
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electron |
An electron is a particle that carries a negative charge |
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magnetic domain |
A grouping of atoms that have their magnetic fields aligned is known as a magnetic domain |
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ferromagnetic material |
A material that shows strong magnetic properties is said to be a ferromagnetic material |
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temporary magnet |
A magnet made from a material that easily loses its magnetism is called a temporary magnet |
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permanent magnet |
A magnet made from a material that keeps its magnetism for a long time is called a permanent magnet |
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compass |
A compass is a device that has a magnetized needle that spinsfreely |
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magnetic declination |
Then imagine a second line drawn between you and the magnetic pole in the Northern Hemisphere. The angle between these two lines is the angle between geographic north 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 surface are two doughnut-shaped regions called the Van Allen belts |
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solar wind |
The solar wind is a stream of electrically charged particles flowing at high speeds from the sun |
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magnetosphere |
The region ofEarth’s magnetic field shaped by the solar wind is called the magnetosphere |
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aurora |
A glowing region in the atmosphere caused by charged particles from the sun is called an aurora |
