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Science 30 January 2000 Diploma Examination

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Use the following information to answer the next question.<br />

Electrical energy can be generated in power stations from a number of<br />

different sources, such as<br />

1. nuclear (fission) power<br />

2. wind power<br />

3. tidal power<br />

4. hydroelectric power<br />

Long Answer – 15%<br />

2. Select one of the sources listed above and explain how electrical energy is produced.<br />

Start with the origin of the energy source you have chosen and continue your<br />

explanation to the point where electrical energy is produced. Include all energy<br />

transformations. Describe the advantages and disadvantages of generating electricity<br />

from this source.<br />

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