Heat transfer

1. Which of the following modes of heat transfer takes place when you burn your hand by touching a fire? D

2. The sun travels in waves and doesn’t need atoms and molecules to move along. Which of the following modes of heat transfer does this example describe? A. radiation B. convection C. convention D. ***

4. How does heat travel through the pan? A. radiation B. convection C. convention D. conduction

5. In what direction does heat travel through the soup? A. from bottom to top B. from top to bottom C. both A and B D. neither A nor B

3. When gases acquire heat, molecules tend to move so rapidly that heated gases expand, and as result, the heated gases rise and lose energy. This vertical heat transfer moving fluid is known as____________.