1. Conduction, Convection, and Radiation Heat Energy Transfer

3. A Conduction transfers energy as heat along the wire and into the hand B. Embers swirl upward in the convection currents that are created by the warmed air above the fire which rises C. Electromagnetic waves emitted by the hot campfire transfer energy by radiation

8. Perhaps the first thing that most people say is "heat rises" . While not wrong, what you should say is "hot air rises" or "hot water rises" . Anything fluid - that is gases or liquids - will tend to change density with changes in temperature. For example, if heated, air decreases in density. The surrounding air is cooler and denser . This makes it heavier, so it falls beneath the hot air, forcing it upwards.

10. What type of heat transfer is shown in the following pictures? A. B. C. D. Convection Radiation Radiation Conduction