Physical Science Chapter 10: Thermal Energy

Vocabulary Words	Objective Questions
10-1 Temperature and Thermal Energy	page 286
temperature thermal energy	How does kinetic energy and molecular movement relate to one another? Why do materials expand when heated and contract when cooled? What are the three common temperature scales? What is special about the Kelvin scale? What determines the potential energy of molecules? Do you have to increase temperature to increase thermal energy? Explain.
10-2  Heat	page 290
heat conduction radiatin convection conductor specific heat thermal pollution forced convection insulator	What are three ways to transfer heat?  Give an example of each. Give three examples of a conductor. Give three examples of an insulator Why is it important to insulate you home? What are some ways to insulate your home? Which would heat up fastest to slowest? sand, asphault, water, grass
10-3  Engines and Refrigerators	page 297
engine external combustion engine internal combustion engine	List and explain the four steps of a four-stroke engine. What is significant about the power stroke? What is the major differnce between a diesel engine and a gasoline engine? How do refrigerator and air conditioners work? What is a heat pump?

* Science and Society: The Heat is On   page 304-305