Conceptual Physics Alive: Heat Transfer

Conceptual Physics Alive: Heat Transfer includes a digital video and questions set with answers. Conduction is related to many everyday examples and is demonstrated by boiling water under a variety of conditions. Convection is shown with a pressure cooker. Radiation is related to Newton's law of cooling. Segment length: 45 minutesHeat Transfer Includes: Hewitt begins by heating a metal ring with a torch to see the effect on the hole size. The hole gets larger, which answers the homework (Next-Time Question) of the previous lecture. Chalkboard explanation is given of the increase in hole size. Demonstration of heating a bimetallic strip. Its application is the thermostat. The wooden handle of the bimetallic strip and poor heat conduction. Conductors and the presence of loose electrons about atomic nuclei. Wood is a poor conductor at any temperature, whether in a hot oven or as red-hot coals. Walking barefoot on red hot coals without harm is explained. The conductivity of chairs in the