Science 30 Diploma Examination January 2001

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Use the following information to answer the next question.Energy Sources1 Controlled nuclear fission2 Underground radioactive decay3 Chemical potential energy4 Gravitational potential energyNumerical Response10. Match each of the energy sources numbered above with the appropriate type ofpower plant given below.Geothermal _____ (Record in the first column.)Hydroelectric _____ (Record in the second column.)CANDU reactor _____ (Record in the third column.)Coal-fired _____ (Record in the fourth column.)(Record all four digits of your answer in the numerical-response section on the answer sheet.)20
34. Electrical energy is transmitted from a power plant usingA. DC to avoid dangerous voltagesB. AC to prevent radio interferenceC. AC to reduce transmission lossesD. DC to improve instrument efficiency35. The step-up transformer at an electrical power-generating plant increases thevoltage from 120 V to 24 000 V. If there are <strong>30</strong>0 turns in the primary coil, howmany turns are there in the secondary coil?A. 15.0B. 6.00 × 10 4C. 2.88 × 10 5D. 7.20 × 10 621
Page 1 and 2: ence 30 Science 30 Science 30 Scien
Page 3 and 4: Multiple Choice• Decide which of
Page 5 and 6: Doctors and technicians at a medica
Page 7 and 8: 3. A doctor tests a patient’s ref
Page 9 and 10: 8. The eye structure that changes s
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Page 17 and 18: Care of the environment is an issue
Page 19 and 20: 28. In an electrostatic precipitato
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Page 29 and 30: Short Answer - 5%Each of the diagra
Page 31 and 32: . Increased fuel efficiency of cars
Page 33 and 34: Tear-outPageNo marks will be given

Science 30 Diploma Examination January 2001

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