# Exam 1 - Exam 1 2 From the following identify the group...

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Exam 1 2. From the following, identify the group where all energy sources are renewable energy sources. (2 Points) A. Nuclear Fission, Biomass B. Solar, Nuclear Fusion C. Tidal, Coal D. Wind, Petroleum Solar wnergy and Nuclear Fusion are renewable energy sources. [Refer to page 17 in the text book.] Points Earned: 2/2 Correct Answer: B Your Response: B 3. One food calorie is equal to how many calories? (2 Points) A. 1/100 B. 100 C. 1/1000 D. 1000 One food calorie is equal to 1000 calories. [Refer to page 14 in the text book.] Points Earned: 0/2 Correct Answer: D Your Response: B 4.

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Exam 1 The United States has approximately _____ percent of the World’s coal reserves (2 Points) A. 75 B. 5 C. 0.550 D. 25 The United States has approximately 25 percent of the World’s coal reserves. [Refer to page 42 in the text book.] Points Earned: 2/2 Correct Answer: D Your Response: D 5. Which one of the following energy conversion devices has the highest energy efficiency? (2 Points) A. Automobile engine B. Fluorescent light bulb C. Steam turbine D. Steam boiler in a power plant Steam boiler in a power plant has the highest efficiency (90%) [Refer to table 3.1 in the text book.] Points Earned: 2/2 Correct Answer: D Your Response: D 6. Which of the following is NOT true about energy conversion devices?
Exam 1 (2 Points) A. Total Energy Input = Total Energy Output B. Total Energy Input = Useful Energy Output + Energy Dissipated to the surroundings C. Total Energy Input = Useful Energy Output D. Total Energy Input = Total Energy Output / Efficiency Total Energy Input does not equal Useful Energy Output. Total Energy Input does not equal Total Energy Output / Efficiency. [Refer to figure 3.1 on page 51 of the text book.] Points Earned: 2/2 Correct Answer: C Your Response: C 7. From a car, useful energy output is __________. (2 Points) A. Radiation B. Mechanical C. Chemical D. Thermal or Heat From a car, useful energy output is mechanical. The usefull energy is in the form of motion which is mechanical. Points Earned: 2/2 Correct Answer: B Your Response: B 8. In a heat engine, thermal energy is converted into _________ energy.

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Exam 1 (2 Points) A. Thermal B. Mechanical C. Electrical D. Chemical In a heat engine, thermal energy is converted into mechanical energy. [Refer to page 55 in the text book] Points Earned: 2/2 Correct Answer: B Your Response: B 9. In a fossil fuel fired power plant, chemical energy is finally converted into_______energy. (2 Points) A. Thermal B. Mechanical C. Chemical D. Electrical In a fossil fuel power plan, chemical energy is finally converted into electrical energy. [Refer to page 57-58 in the text book.] Points Earned: 2/2 Correct Answer: D Your Response: D 10. The fastest growth in the energy use is projected for some of the Asian nations. (2 Points) The fastes growth in the energy use is projected for some of the Asian nations.
Exam 1 Points Earned: 2/2 Correct Answer: True Your Response: True 11.

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