Physical Science Unit 3b Vocab

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Across
  1. 4. the increase in volume of a material when its temperature increases
  2. 6. a material that conducts energy well
  3. 7. the energy stored in atomic nuclei
  4. 10. energy obtained from flowing water
  5. 14. a measure of the kinetic energy of the particles in an object
  6. 15. thermal energy discharged into an area at a lower temperature without being converted into useful work
  7. 17. the amount of heat needed to raise the temperature of one gram of a material by one degree Celsius
  8. 18. any device that converts thermal energy into work
  9. 19. rich deposits of hyrdrocarbon mixtures that formed from the remains of organisms
  10. 21. a heating system that heats any rooms from one central location
  11. 23. a device that uses work to transfer thermal energy from a colder area to a warmer area
  12. 24. circulation of a fluid in a loop as the fluid alternately heats and cools down
  13. 25. instrument used to measure thermal energy released or absorbed during a chemical or physical change16.2
  14. 26. the transfer of energy by waves moving through space
  15. 27. a fluid that vaporizes and condenses inside the tubing of a heat pump
  16. 28. the practice of finding ways to use less energy or to use energy more efficiently
  17. 29. a heat engine in which the fuel burns inside the engine
Down
  1. 1. the study of conversions between thermal energy and other forms of energy
  2. 2. the process of changing energy from one form to another
  3. 3. thermal energy beneath Earth’s surface
  4. 5. the transfer of thermal energy from one object to another because of a difference in temperature
  5. 8. a source of energy that can be replaced in a relatively short period of time
  6. 9. a source of energy that exists in limited quantities and, once used, cannot be replaced except over the course of millions of years
  7. 11. a heat engine in which the fuel burns outside the engine
  8. 12. the chemical energy stored in living things
  9. 13. A material that conducts thermal energy poorly
  10. 16. sunlight that is converted into usable energy
  11. 20. the transfer of thermal with no overall transfer of matter within a material or between materials that are touching
  12. 22. a temperature of zero kelvins
  13. 25. the transfer of thermal energy when particles of a fluid move from one place to another