GEOG 3 Lecture Notes - Lecture 3: Wave Power, Emissivity, Shortwave Radio
Document Summary
Kinetic energy: the energy of motion: vibrational energy of molecules that we measure as temperature. Kelvin scale: starts at absolute zero temp: 0 k = no kinetic energy, k = c + 273. Heat: the glow of ke b/w molecules: i. e. , the transfer of energy b/w two substances, resulting from a temperature di b/w/ them. Heat always ows from an area of high temp to an area low temp: i. e. , heat ows from the hotter to the colder substance, heat ow stops when temp becomes equal. As the internal energy of substance increases, so does the temp. Various substances di er in the amount of heat needed to produce a given temp change. There are three ways heat is transferred through the earth-atmoshphere system: Conduction the transfer of heat through molecular contact: as molecules warm, their vibration increases, causing collisions that produce motion in neighboring molecules, thus transferring heat molecule-to-molecule. Heat transfer through solids, liquids, and gases.
