1) What is the definition of heat? What are some different units of heat? Are temperature and heat the same?2) What are the different types of heat transfer? Give a practical example of each type of heat transfer.3) List and describe the 6 different phase change processes. Which of the processes are cooling processes? Which are warming processes? 4) What is thermal conductivity? Provide a practical example of its application.5) What is momentum? Give a practical example.