| Electricity is a form of
energy. A law of energy, Conservation of Energy, says that
energy cannot be created or destroyed. However, energy can be converted
from one form to another. |
| Some of the most common energy sources
are: |
- chemical
- mechanical
- heat
- light
|
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Chemical
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| Some examples of chemical
energy being converted to electrical energy are: |
|
- lead acid battery (car battery)
- carbon zinc battery (D cell)
- electrolyte with dissimilar metal
|
Mechanical
|
|
| Some examples of mechanical energy being
converted to electrical energy are: |
|
- friction
- piezoelectric crystal
- magnetism (moving conductor in a magnetic field
such as an alternator)
|
Heat
|
|
| An example of heat
being converted to electrical energy are: |
|
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|
Light
|
|
| An example of light being converted to
electrical energy are: |
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