Science 30 January 2000 Diploma Examination

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Use the following information to answer the next question. Electrical energy can be generated in power stations from a number of different sources, such as 1. nuclear (fission) power 2. wind power 3. tidal power 4. hydroelectric power Long Answer – 15% 2. Select one of the sources listed above and explain how electrical energy is produced. Start with the origin of the energy source you have chosen and continue your explanation to the point where electrical energy is produced. Include all energy transformations. Describe the advantages and disadvantages of generating electricity from this source. ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... ....................................................................................................................................................... 28
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Page 37 and 38: January 2000 LA 1 - Sample Answer a

Science 30 January 2000 Diploma Examination

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