Name ___________________________________________________________________ Period ______________
Unit 3, Lesson 2 - Energy Transfer Study Guide (85)
1. Explain how air moves.
2. Temperature –
3. Thermal energy –
4
. Thermal expansion –
5. Density –
6. Heat –
7. Specific heat –
8. Radiation –
9. Convection –
10. Convection current –
11. Conduction –
12. Do hot substances have more or less kinetic energy than cool substances? _____________________
13. What process (circle one) is responsible for heating the atmosphere?
Radiation from clouds
radiation from land
radiation from the sun
14. Explain what happens to molecules as they are heated.
15. Which of the following (circle one) will have the greatest thermal energy?
12 degrees C
14 degrees C
24 degrees C
10 degrees C
16. Warm air or water rising and cool air or water sinking is what kind of heat/energy transfer? _________________
17. What kind of energy transfer is taking place when an ice cube in placed in your hand? ___________________
18. Which energy transfer is the only type that can go through empty space and can transfer heat between
molecules? ___________________________________
19. Draw or explain an example of conduction, convection and radiation. (Three drawings or explanations.)
Conduction
Convection
Radiation