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15 Cards in this Set
- Front
- Back
Define north pole
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North seeking part of a magnet
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Define south pole
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south-seeking part of a magnet
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Define electromagnetic induction
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1
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Define Principles of electromagnetism
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1
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Define Electromagnetic (EM) waves
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1
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Define Blackbody radiation
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1
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Define Greenhouse effect
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1
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Sketch the shape of the magnetic field around a bar magnet.
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1
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What happens to a feromagnetic material when it is placed in a magnetic field?
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1
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Describe the three basic interactions between electricity and magnetism
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1
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Explain what superconducting electromagnets are. What advantages do they have over conventional electromagnets? What disadvantages do they have?
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1
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Nave fine different basic devices that use at least one of the electromagnetic interactions.
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1
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IN many cases, the effect of an electromagnetic interaction is perpendicular to its cause. Describe two different examples that illustrate this.
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1
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A coil of wre has a large alternation current flowing in it. A piece of aluminum or copper placed near the coil becomes warm even if it does not touch the coil. Explain why.
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1
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What is analog-todigital conversion, and how is it used in sound reproduction?
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1
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