Name___________________________________________ Period __________ Thermal Energy & Heat Transfer Study Guide Use your Thermal Energy Notes; Conduction, Convection, & Radiation Power Point; & Ch. 16 in book 1. Write the Definitions and give an example for each of the three types of heat transfer. 2. Give the Definition for the three following terms: a. Thermal Energy b. Temperature c. Heat 3. As the temperature of an object rises, so does the what? 4. Heat is the transfer of thermal energy from one object to another because of a difference in what? 5. What are three units of temperature used in science? 6. What is the average kinetic energy of the particles in that object? 7. Thermal energy depends on an object’s _____________________ & ______________________ 8. Double‐Paned (a vacuum between the pieces of glass) windows are very energy efficient because they keep what two types of heat transfer from occurring? 9. _____________________________ can transfer energy through space where there is no matter. 10. Matter is needed to transfer thermal energy by _________________________________ and _____________________________________ 11. If the temperature change of an aluminum nail is exothermic, thermal energy is transferred __________________________ the nail _________________________ the surroundings. 12. Energy from the sun reaches Earth mostly by ________________________________________ 13. List two materials that conduct heat well. 14. Heat is the transfer of thermal energy because of a(an) ________________________ difference. 15. Explain why the tile on a bathroom floor feels colder than carpeting even though both are at the same temperature? 16. How does heat transfer through conduction occur? 17. A thermos bottle has two insulators: 2 plastic layers and a vacuum between the plastic pieces. The ________________________________ is the better thermal insulator. 18. As an object’s temperature increases, the ___________________________ at which it radiates energy increases. 19. The transfer of thermal energy with direct contact of matter is called _____________________. 20. The transfer of energy through electromagnetic waves moving through space is called ____________________________. Figure 16 21. Compare the average kinetic energy (temp) of the water molecules in the three beakers in Figure 16. 22. Equal amounts of thermal energy are transferred to the water in each container shown in Figure16. Explain why the water in B has the highest final temperature. Even though the temperature change will be the same for A and B since they have the same mass, B’s final water temperature is higher because B’s started with a higher beginning temperature. B’s water has less mass than C’s water, so B’s water has a greater temperature change, making B’s final water temperature higher. 23. Compare the thermal energy of the water in the three beakers in Figure 16. 24. How does surface area relate to the amount of heat transfer? 25. The type of thermal energy transfer that takes place in fluids is mostly ____________________. 26. A material that conducts thermal energy well is called a thermal ____________________. 27. Describe the direction of heat flow between objects at different temperatures. 28. Why does hot air rise and cold air sink? 29. Why are boilers or pilot lights placed beneath hot water tanks in people’s homes? 30. Explain how winds off of the ocean or a lake occur based on the idea of convection. 31. A hot dinner plate has ____________________ thermal energy than a similar dinner plate at room temperature. 32. What is kinetic energy? 33. Explain how kinetic energy is transferred through convection.