STAT 2000 Lecture Notes - Lecture 8: Lithosphere, Advection, Decomposer
23 Feb 2017
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Document Summary
Potential energy is the energy of an object prior to it being released as free energy, commonly called the energy at rest. Kinetic energy is the free energy of motion or action. Heat energy is the kinetic energy generated by the motion of molecules. It is measured as the sum of all molecular motion of an object. Radiant energy: energy transfer as electromagnetic waves by all objects with a t>0k (-273 degrees celsius or absolute zero) First law of thermodynamics: in all physical & chemical changes energy is neither created nor destroyed, but it may be converted from one form to another. (law of conservation of energy) Second law of thermodynamics: when energy is changed from one form to another, some of the useful energy is always degraded to lower-quality, more dispersed, less useful energy. ** greater than (>) 99% of earth"s energy is from the sun.
