Questions below are a pool that will be drawn from for quiz and test making. Yest yourself first!
1. What two conditions are necessary for heat to flow between two objects?
2. Why is air a better insulator than aluminum?
3. Define conduction.
4. Define convection.
5. Name 2 good conductors that are not used elsewhere in this
test.
6. Name 2 good insulators that are not used elsewhere in this
test.
7. Heat always flows in one direction. Describe that
direction.
8. How long will heat continue to flow in conduction?
9. How does heat travel in a solid like a wire if, for
example, you heat only the end of the wire?
10. Is a vacuum an insulator or a conductor? Give
reasons for your answer.
11. Is aluminum an insulator or a conductor? Give
reasons for your answer.
12. If glass is a better insulator than aluminum, then why did the corner of glass get hot enough to vaporize the wax when the aluminum did NOT get hot enough to vaporize the wax.
13. What is the difference between heat transfer in a fluid and heat transfer in solid?
14. A researcher was trying to get money to design a stove and cooking pot that you could use in which the stove would heat the top of the cooking pot to cook the food. Do you think this would be an imporvement over current stoves? Explain your answer.
15. How does heat travel in a solid like a wire if, for example, you heat only the end of the wire?
16. Are metals insulators or conductors?
17. Suggest a reason to explain why some metals conduct heat better than
other metals?
18. What is a conductor?
19. How is a conductor different than an insulator?
20. If glass is a better insulator than aluminum, then why did the corner of glass get hot enough to vaporize the wax when the aluminum did NOT get hot enough to vaporize the wax.
21. What two conditions are necessary for heat to flow?
22. How long will heat continue to flow?
23. Why is air a better insulator than aluminum?
24. Why is a vacuum a good insulator?
25. What is an application of using a vacuum to prevent heat transfer?
26. Do you think astronauts flying to the moon need to worry about heat "leaking" out of their space capsule? Explain.
27. What does heat (energy being transformed into a less usable form) tell us about the universe and God?
28. Rank aluminum, glass, air, vacuum on a spectrum where one end is the best insulator and the opposite end is the best conductor. Explain why you ranked them that way.
29. Compare and contrast conduction and convection providing at least three examples of each one.
30. Do you think water is an insulator or a conductor? Give reasons for your answer.
31. Do you think ice is an insulator or a conductor? Give an example from the natural world that supports your answer and expalin why it supports your assertion.
32. Find 4 appliances (machines or electronic devices) that are designed to transfer heat energy in your home. Give a brief description of the energy conversions (changes in each one).
33. Can you explain why you feel warm when you are standing away from a campfire?
34. Why does a carpeted floor feel warmer to bare feet than tile or wood even though all surfaces are the same temperature?
35. What information would you need in order to predict whether heat transfer would occur when two objects or materials interact?
36. What would happen if a person who is wearing a heavy winter jacket were to place a thermometer inside the jacket next to his or her skin? What would happen if we took the same jacket, after it had been hanging in a closet, and placed a thermometer inside?
37. What is the difference between visible light and infrared light?
38. What do the various colors on an infrared photograph signify?
39. Explain how infrared radiation contributes to Earth's heating and cooling.