Science 30 Diploma Examination January 2001

Use the following information to answer the next question.Steps in the Conversion of Solar Energy to the Electrical EnergyProduced by a Coal-Fired Generating Station1 2 3 4Sun → Coal → Steam → Turbine → GeneratorNumerical Response9. Match each of the steps numbered above with the description of its energyconversion given below.Mechanical to electrical _____ (Record in the first column.)Chemical to thermal _____ (Record in the second column.)Thermal to mechanical _____ (Record in the third column.)Solar to chemical _____ (Record in the fourth column.)(Record all four digits of your answer in the numerical-response section on the answer sheet.)33. Tidal energy is a renewable energy source. Tides are caused byA. magnetic fieldsB. geothermal fieldsC. electrostatic fieldsD. gravitational fields19