* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Ch. 2 Energy
Dark energy wikipedia , lookup
Efficient energy use wikipedia , lookup
Open energy system models wikipedia , lookup
William Flynn Martin wikipedia , lookup
Energy storage wikipedia , lookup
Potential energy wikipedia , lookup
100% renewable energy wikipedia , lookup
Energy subsidies wikipedia , lookup
Low-Income Home Energy Assistance Program wikipedia , lookup
Kinetic energy wikipedia , lookup
Public schemes for energy efficient refurbishment wikipedia , lookup
Zero-energy building wikipedia , lookup
World energy consumption wikipedia , lookup
Low-carbon economy wikipedia , lookup
Regenerative brake wikipedia , lookup
Alternative energy wikipedia , lookup
Energy Charter Treaty wikipedia , lookup
Energy policy of Australia wikipedia , lookup
International Energy Agency wikipedia , lookup
Internal energy wikipedia , lookup
Energy returned on energy invested wikipedia , lookup
Distributed generation wikipedia , lookup
Energy efficiency in transport wikipedia , lookup
Energy policy of the United Kingdom wikipedia , lookup
Energy harvesting wikipedia , lookup
Energy policy of Finland wikipedia , lookup
Life-cycle greenhouse-gas emissions of energy sources wikipedia , lookup
Negawatt power wikipedia , lookup
Energy in the United Kingdom wikipedia , lookup
Energy policy of the European Union wikipedia , lookup
Conservation of energy wikipedia , lookup
United States energy law wikipedia , lookup
Energy efficiency in British housing wikipedia , lookup
Energy applications of nanotechnology wikipedia , lookup
Energy Independence and Security Act of 2007 wikipedia , lookup
Ch. 2 Energy Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. The ability to do work or cause change is called a. velocity. b. energy. c. transfer. d. friction. ____ 2. Energy is measured in units called a. joules. b. pounds. c. meters. d. horsepower. ____ 3. What type of energy does a spinning turbine have? a. electrical energy b. nuclear energy c. thermal energy d. mechanical energy ____ 4. An example of something that stores chemical energy is a. lightning. b. a microwave. c. a match. d. light. ____ 5. What type of energy transformation is taking place when natural gas is used to heat water? a. chemical energy into thermal energy b. thermal energy into mechanical energy c. mechanical energy into electromagnetic energy d. electromagnetic energy into chemical energy ____ 6. Which of the following has kinetic energy? a. a rock poised for a fall b. an archer’s bow that is drawn back c. a rolling bowling ball d. a car waiting at a red light ____ 7. Potential energy that depends on height is called a. kinetic energy. b. gravitational potential energy. c. elastic potential energy. d. mechanical energy. ____ 8. The rate at which energy is transferred is called a. joules. b. power. c. work. d. time. ____ 9. How would you calculate an object’s mechanical energy? a. Add its kinetic and potential energies. b. Multiply its kinetic and potential energies. c. Subtract its kinetic energy from its potential energy. d. Subtract its potential energy from its kinetic energy. ____ 10. Energy stored in the nucleus of an atom is called a. electromagnetic energy. b. nuclear energy. c. mechanical energy. d. chemical energy. ____ 11. The energy associated with motion is called a. kinetic energy. b. elastic potential energy. c. gravitational potential energy. d. nuclear energy. ____ 12. Unlike kinetic energy, potential energy is a. energy of motion. b. stored. c. conserved. d. not measurable. ____ 13. The energy associated with the motion and position of an object is called a. kinetic energy. b. potential energy. c. gravitational potential energy. d. mechanical energy. ____ 14. Visible light is an example of a. chemical energy. b. electrical energy. c. electromagnetic energy. d. nuclear energy. ____ 15. Moving water can be used to produce electricity because a. all forms of energy can be transformed into other forms. b. energy can be transformed into power. c. potential energy can be transformed into kinetic energy. d. chemical energy can be transformed into mechanical energy. ____ 16. A change from one form of energy into another is called a. an energy increase. b. work. c. conservation of energy. d. an energy transformation. ____ 17. When you rub your hands together on a cold day, you use friction to transform a. mechanical energy into thermal energy. b. thermal energy into nuclear energy. c. nuclear energy into electrical energy. d. electrical energy into electromagnetic energy. ____ 18. The law of conservation of energy states that when one form of energy is transformed to another, a. energy is destroyed in the process. b. no energy is destroyed in the process. c. energy is created in the process. d. some amount of energy cannot be accounted for. Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. ____ 19. When work is done on an object, the object gains energy. ____________________ ____ 20. The kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf. ____________________ ____ 21. A compressed spring has elastic potential energy. ____________________ ____ 22. In a machine, work output is less than work input because some energy is converted into thermal energy. ____________________ ____ 23. A nuclear reaction in which the nuclei of atoms join together is called nuclear fission. ____________________ Completion Complete each statement. 24. A large truck and a small car are moving at the same speed. The truck has greater kinetic energy because its ____________________ is greater. 25. If the velocity of an object is doubled, its kinetic energy is multiplied by ____________________. 26. As water runs over a waterfall, its potential energy is converted into ____________________ energy. 27. Work is the transfer of ____________________ from one object to another. 28. A baseball flying through the air has ____________________ energy because of its motion. 29. If an object has mechanical energy, it can do ____________________ on another object. 30. ____________________ energy, such as ultraviolet radiation, travels in the form of waves. Ch. 2 Energy Answer Section MULTIPLE CHOICE 1. ANS: OBJ: BLM: 2. ANS: OBJ: BLM: 3. ANS: OBJ: TOP: 4. ANS: TOP: 5. ANS: OBJ: BLM: 6. ANS: OBJ: BLM: 7. ANS: OBJ: BLM: 8. ANS: OBJ: BLM: 9. ANS: OBJ: TOP: 10. ANS: TOP: 11. ANS: OBJ: BLM: 12. ANS: OBJ: BLM: 13. ANS: OBJ: TOP: 14. ANS: TOP: 15. ANS: OBJ: BLM: B PTS: 1 DIF: L1 Explain how energy, work, and power are related. TOP: knowledge A PTS: 1 DIF: L1 Explain how energy, work, and power are related. TOP: knowledge D PTS: 1 DIF: L2 Explain how to determine an object’s mechanical energy. m_ch05_020 BLM: application C PTS: 1 DIF: L2 OBJ: m_ch05_006 BLM: comprehension A PTS: 1 DIF: L2 Explain how different forms of energy are related. TOP: application C PTS: 1 DIF: L2 Name and describe the two basic types of energy. TOP: application B PTS: 1 DIF: L1 Name and describe the two basic types of energy. TOP: knowledge B PTS: 1 DIF: L1 Explain how energy, work, and power are related. TOP: knowledge A PTS: 1 DIF: L1 Explain how to determine an object’s mechanical energy. m_ch05_027 BLM: knowledge B PTS: 1 DIF: L1 OBJ: m_ch05_021 BLM: knowledge A PTS: 1 DIF: L1 Name and describe the two basic types of energy. TOP: knowledge B PTS: 1 DIF: L1 Name and describe the two basic types of energy. TOP: knowledge D PTS: 1 DIF: L1 Explain how to determine an object’s mechanical energy. m_ch05_026 BLM: knowledge C PTS: 1 DIF: L2 OBJ: m_ch05_022 BLM: comprehension A PTS: 1 DIF: L2 Explain how different forms of energy are related. TOP: comprehension m_ch05_001 m_ch05_002 List other forms of energy. m_ch05_008 m_ch05_016 m_ch05_018 m_ch05_025 List other forms of energy. m_ch05_003 m_ch05_017 List other forms of energy. m_ch05_007 16. ANS: OBJ: BLM: 17. ANS: OBJ: BLM: 18. ANS: OBJ: BLM: D PTS: 1 DIF: L1 Explain how different forms of energy are related. knowledge A PTS: 1 DIF: L2 State the law of conservation of energy. application B PTS: 1 DIF: L1 State the law of conservation of energy. knowledge TOP: m_ch05_028 TOP: m_ch05_009 TOP: m_ch05_024 MODIFIED TRUE/FALSE 19. ANS: OBJ: BLM: 20. ANS: T PTS: 1 Explain how energy, work, and power are related. comprehension F, gravitational potential DIF: L2 TOP: m_ch05_031 PTS: TOP: 21. ANS: OBJ: BLM: 22. ANS: OBJ: BLM: 23. ANS: 1 DIF: L2 OBJ: Name and describe the two basic types of energy. m_ch05_032 BLM: application T PTS: 1 DIF: L2 Name and describe the two basic types of energy. TOP: m_ch05_033 application T PTS: 1 DIF: L2 State the law of conservation of energy. TOP: m_ch05_036 comprehension F, fusion PTS: 1 DIF: L1 OBJ: List other forms of energy. TOP: PH_EN_SC_MGS_2010_X_56131 BLM: knowledge COMPLETION 24. ANS: mass PTS: 1 DIF: L2 TOP: m_ch05_041 25. ANS: four OBJ: Name and describe the two basic types of energy. BLM: application PTS: 1 DIF: L2 TOP: m_ch05_042 26. ANS: kinetic OBJ: Name and describe the two basic types of energy. BLM: analysis PTS: 1 DIF: L1 TOP: m_ch05_046 27. ANS: energy OBJ: Explain how different forms of energy are related. BLM: knowledge PTS: 1 DIF: L1 TOP: m_ch05_055 28. ANS: kinetic OBJ: Explain how energy, work, and power are related. BLM: knowledge PTS: 1 DIF: L2 TOP: m_ch05_043 29. ANS: work OBJ: Name and describe the two basic types of energy. BLM: comprehension PTS: 1 DIF: L1 TOP: m_ch05_056 30. ANS: Electromagnetic OBJ: Explain how to determine an object’s mechanical energy. BLM: knowledge PTS: 1 DIF: L2 TOP: m_ch05_044 OBJ: List other forms of energy. BLM: comprehension