Yes.. what's said above is correct.. And to answer your second question- Yes..technically, they can be used to make elecricity.
Since mechanical waves are actually vibrations in the medium, these vibrations can be absorbed by either a peizo-crystal, or a diaphram with netted wires..
By the properties of the crystal, physical vibrations are converted into electrical waves- AC.
If the diaphram is subjected to a magnetic field, the wires will have an AC current in them..
But to have practically usable electricity, you need to have strong waves.. The normal sound waves we hear around us, would not be sufficient to generate enough elecricity to even run an LED..
2006-09-29 01:34:38
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answer #1
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answered by Kidambi A 3
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A mechanical wave is a wave that needs a medium through which to transmit energy. Sound waves, waves in a Slinky, and pressure waves are all examples of this. Sound waves need air molecules in order to exist; the Slinky waves need the Slinky, and the waves in the ocean need the water.
It follows, then, that mechanical waves cannot exist in a vacuum. This is the factor that distinguishes them from electromagnetic waves.
Mechanical waves are a local oscillation of material. Only the energy propagates; the oscillating material does not move far from its initial equilibrium position. Therefore, mechanical waves transport energy and not material.
It is difficult to use mechanical waves to make electricity.
2006-09-29 01:56:11
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answer #2
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answered by Anonymous
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A mechanical wave is a wave that needs a medium through which to transmit energy. Sound waves, waves in a Slinky, and pressure waves are all examples of this. Sound waves need air molecules in order to exist; the Slinky waves need the Slinky, and the waves in the ocean need the water.
It follows, then, that mechanical waves cannot exist in a vacuum. This is the factor that distinguishes them from electromagnetic waves.
Mechanical waves are a local oscillation of material. Only the energy propagates; the oscillating material does not move far from its initial equilibrium position. Therefore, mechanical waves transport energy and not material.
2006-09-29 01:24:39
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answer #3
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answered by junaidi71 6
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Mechanical means, the technique of action, could be utilized to produce electric means any time a magnet strikes interior of a coil of twine or a band of twine strikes interior of a sequence of magnets. regardless of gets the magnet or coil to flow could be the mechanical means, no be counted if it somewhat is human means, waves, wind, or something you are able to think of of. desire this helps.
2016-12-15 16:39:30
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answer #4
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answered by Anonymous
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