Thermal Energy Study Guide Name: __________________________________________ Hour______ Define the following: 1. Sound energy 2. Radiant energy 3. Thermal energy 4. Nuclear energy 5. Electrical energy 6. Mechanical energy 7. Chemical energy 8. Kinetic energy 9. Potential energy 10. Renewable energy 11. Non-renewable energy 12. Conductor 13. Insulator 14. Radiation 15. Conduction 16. Convection 17. Equilibrium THERMOS TEMPERATURES WITH ONLY ONE MATERIAL MATERIAL A B C D INITIAL TEMPERATURE 80°C 80°C 80°C 80°C ENDING TEMPERATURE 74°C 78°C 66°C 42°C Use the data from the table above to answer questions 13 & 14. 18. Which is the best insulator, and why? 19. Rank materials in order from most conductive to least conductive. 20. A balloon was blown up and placed in the freezer. When it was taken out of the freezer, it expanded. Which of the following explains the changes in kinetic and thermal energy when the balloon was taken out of the freezer? a. Kinetic energy increases, thermal energy increases b. Kinetic energy decreases, thermal energy increases c. Kinetic energy increases, thermal energy decreases d. Kinetic energy decreases, thermal energy decreases 21. In which picture are the molecules moving the slowest? How do you know? 100°C 100°C 100°C 100°C 22. At what temperature does water freeze? ________°F, ________°C, _______K 23. At what temperature does water boil? ________°F, ________°C, _______K 24. What temperature is absolute zero? ________°F, ________°C, _______K 25. What is room temperature? ________°F, ________°C, _______K 26. Describe what is happening to the kinetic energy of the particles in water as it goes from 40 degrees Celsius to -2 degrees Celsius. 27. Describe what is happening to the kinetic energy of the particles in water as it goes from 80 degrees Celsius to 103 degrees Celsius. 28. In an experiment, one thermometer was placed under a light blue t-shirt and one thermometer was placed under a dark navy t-shirt. A heat lamp was then set up to shine on both shirts. The temperature was measured and recorded for 2 hours at half hour intervals. Describe or illustrate what happens to the temperature of each thermometer. (include the starting temperature for both) 29. You have iced tea in a glass you are outside on a hot day. Describe the direction of heat transfer. 30. You have a cup of hot cocoa in the classroom. Describe the direction of heat transfer. Identify which of the three ways heat is transferred in each example below. 31. Touching cold snow with my hand. __________________ 32. Getting too hot sitting next to the fire. __________________________ 34. 33. . 35. 36. Give an example of convection you see in your everyday life. Explain how heat is transferred in your example. Include density in your explanation. Answer in complete sentences. ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 37. Describe the reason for pouring salt on the roads in the winter. What do we use salt to make ice cream? __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________