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21 Cards in this Set
- Front
- Back
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Magnetism is related to... |
electricity |
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What does magnetism come from |
moving charges |
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Magnetic poles... |
come in pairs |
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All magnetic fields... |
must be closed |
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What are the properties of magnetic fields |
point away from north poles point toward south are always closed loops |
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Stronger field= |
lines closer together |
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Weaker field |
likes further apart |
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Is a magnet a dipole? |
Yes |
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How do magnetic fields interact |
with each other and electrical charges |
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What happens if the magnetic field is perpendicular to the particle velocity |
the particle will go in a circle (direction is always parallel) |
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How do permanent magnets occur |
when magnetic domains are aligned |
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Maxwell's equations describe |
Electricity, magnetism, optics, etc. Speed of light vacuum (collected, modified, added to Ampere's Law) |
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What is electromagnetism |
unified electricity and magnetism |
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How does electromagnetic energy travel |
in waves |
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Gauss' Law of Electricity |
Total charge inside volume = sum of electric field lines through surface (individual electrical charges) |
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Gauss' Law of Magnetism |
Total magnetic charge inside volume = sum of magnetic field lines through surface |
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Faraday's Law |
Changing magnetic field produces electrical field |
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Amphere's Law |
changing electrical field, or current produces magnetic field |
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What are optics |
light is electromagnetic radiation |
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Infared= |
longer |
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Ultraviolet= |
shorter |
