Some electric stoves have a flat ceramic surface with heating elements hidden beneath. A pot placed over a heating element will be heated, while it is safe to touch the surface only a few centimeters away. Why is ceramic, with a conductivity less than that of a metal but greater than that of a good insulator, an ideal choice for the stove top?

When heat transfers into a system, is the energy stored as heat? Explain briefly.

How is heat transfer related to temperature?

How does the latent heat of fusion of water help slow the decrease of air temperatures, perhaps preventing temperatures from falling significantly below 0 C, in the vicinity of large bodies of water?

A mountain climber wears a goose down jacket 3.5 cm thick with total surface area $1.2 \mathrm{m}^{2} .$ The temperature at the surface of the clothing is $-20^{\circ} \mathrm{C}$ and at the skin is $34^{\circ} \mathrm{C}$. Determine the rate of heat flow by conduction through the jacket assuming the jacket is wet, so k is that of water and the jacket has matted to 0.50 cm thickness.

Loose-fitting white clothing covering most of the body is ideal for desert dwellers, both in the hot Sun and during cold evenings. Explain how such clothing is advantageous during both day and night.