1. PS7: Transfer of Thermal Energy PS7: The student will investigation & understand temperature scales, heat, and thermal energy transfer including: a) Celsius & Kelvin temperature scales and absolute zero b) Phase change, freezing point, melting point, boiling point, vaporization & condensation c) Conduction, convection & radiation d) Applications of thermal energy transfer

2. Today’s Objectives: Learning Objectives: I will… Distinguish between heat, thermal energy, and temperature Compare and contrast Celsius & Kelvin temperature scales and describe absolute zero Language Objectives: I will… Read about temperature, thermal energy, and heat. Answer workbook questions to apply concepts of temperature, thermal energy, and heat.

3. Key Vocabulary: Absolute zero Heat Temperature Thermal energy Celsius Kelvin

4. On a half sheet of notebook paper, write and answer the following questions (T or F) 1.Particles of matter have kinetic energy and are in constant motion. 2.Temperature, thermal energy, and heat are the same. 3.Temperature is measured using either Celsius or Kelvin temperature scales. 4.As an object’s temperature increases, the movement of the particles doesn’t change. 5.Absolute zero is the point at which all molecular motion stops.

5. What is kinetic energy? Kinetic energy – energy of motion Matter is made of particles in constant motion. They have kinetic energy.

6. TEMPERATURE How hot or cold something is Temperature is a measure of the average kinetic energy of particles in an object. Measure of how fast particles are moving As heat is added, particles speed up. What does this do to kinetic energy?

7. How is temperature measured? ScaleFreezing Point Boiling Point Fahrenheit (degrees) 32ºF212ºF Celsius (degrees) 0ºC100ºC Kelvin (Kelvins) 273 K373 K Complete Figure 1 questions and Assess your understanding on p. 455

8. Thermal Energy:p.456 Thermal energy – the total energy of all the particles in an object Depends on the number of particles and how those particles are arranged. The more particles at a given temp, the more thermal energy.

9. Thermal Energy p.456 Think of it as the capacity to burn More thermal energy – more serious burn Which would hurt more, spilling a spoon of hot water on your or spilling a whole pan of hot water on you? Which one has more thermal energy? Book p. 456 Complete the “Apply It!” #1 & #2

10. HEAT p. 457 Objects do not contain heat, they contain thermal energy. Heat is the transfer of energy from a warmer object to a cooler object. HOT COLD http://www.fossweb.com/delegate/ssi-wdf-ucm- webContent/Contribution%20Folders/FOSS/multimedia_ms_1E/ChemicalInteractions/molecules/particles.html Complete Figure #2 and “Assess your Understanding” a & b

11. Exit slip: Look at your answers from the beginning of class. Have your answers changed? If so, how? 1.Particles of matter have kinetic energy and are in constant motion. 2.Temperature, thermal energy, and heat are the same. 3.Temperature is measured using either Celsius or Kelvin temperature scales. 4.As an object’s temperature increases, the movement of the particles doesn’t change. 5.Absolute zero is the point at which all molecular motion stops.