1. Energy and Matter Chapter 6 Lesson 2 Mr. Nigh Science 7

4. Energy Transfer Methods

5. Methods of Heat Transfer Conduction is the transfer of heat energy between objects in direct contact Convection is the transfer of heat energy by the movement of liquids or gasses Radiation is the transfer of heat energy by electromagnetic waves

7. Conduction Conduction is the transfer of heat by direct particle to particle contact Ouch

8. Conduction Heat in conduction always travels from high to low temperature

9. What happens when you hold chocolate in your hand?

10. It Melts Why?

11. Heat from your hand Transfers into the cooler chocolate

13. Thermal Conductor A Thermal Conductor is a material through which thermal energy flows easily copper Gold

14. Thermal Insulator A Thermal insulator is a material through which thermal energy is stopped or slowed Rubber Glass

15. Specific Heat Specific Heat is the amount of thermal energy required to increase the temperature of 1Kg of a material by 1 degree Celsius.

16. Because water has a High Specific Heat, it is a great coolant for an internal combustion engine

17. Thermal Contraction Thermal Contraction is a decrease in a material’s volume when its temperature decreases A liquid thermometer goes down when the temperature goes down

18. Thermal Expansion Thermal expansion is an increase in the material’s volume when its temperature increases When workers tried to place the middle piece on a hot July day, It wouldn’t fit

19. Convection is the transfer of heat by the movement of a liquid or gas smoke

22. Current

24. Radiation Radiation is the transfer of heat through electromagnetic waves

29. Name the type of Energy Transfer