ENVS: Week 2, Ch 2
ENVS: Week 2, Ch 2 ENVS 101 004
Popular in The Blue Planet
Popular in Environmental Science
This 2 page Class Notes was uploaded by Bianca Notetaker on Friday August 28, 2015. The Class Notes belongs to ENVS 101 004 at University of New Mexico taught by Priewisch in Summer 2015. Since its upload, it has received 33 views. For similar materials see The Blue Planet in Environmental Science at University of New Mexico.
Reviews for ENVS: Week 2, Ch 2
Report this Material
What is Karma?
Karma is the currency of StudySoup.
Date Created: 08/28/15
ENVS Week 2 Friday August 28 2 15 239 PM 0 Laws and Principles A statement that some aspect of nature is always observed to happen in the same way with no derivation 0 Theory can become a lawprinciple 0 Energy Everything that happens in and on earth is driven by energy 0 Energy that is stored within a system chemical nuclear powered objects gravity 0 Expressed in the form of electrons atoms and molecules radiant electrical etc 0 Fundamental laws of thermodynamics 0 Transfer of energy from one body to another is subject to the three laws of thermodyamics I Law 1 One form of energy can be transformed into another form of energy III Radiant to chemical III Chemical to motion III Electrical to thermal I Law 2 Change from useful to less useful III Cannot be completely recycled III No real process can be 100 efficient I Law 3 Existence of absolute zero temperature gt entropy zero III Absolute kelvin temperature scale III Relative Celsius temperature sclae 0 Energy sources 0 Eternal energy sources I Thesun I Gravity O Gravity and tides I Tidal distortion causing flattening of ellipsoid O The sun I Fusion converts matter to energy I We can only see the outer layer of the sun the corona during an eclipse New Section 1 Page 1 The Blue Planet Ch 2 Continued Saturday Auust 29 Z 15 1 2 7 AM 0 Electromagnetic Spectrum THE ELECTRO MAGNETIC SPECTRUM Wavelength lnwlurs Radio Microwave Infrared Visible Ultrawole X Ray Gamma Ray 1 l l 1 l l l I I I I I I I w H J mquot m 39quot WANWWVWWV Frequency l39Hl m In mlquot 10 uquot m m 10H 10quot In M 0 Altered due to certain gases in earth39s atmosphere 0 Our ozone layer absorbs ultraviolet rays heat is transmitted through collision of neighboring particles 0 Ex With a frying pan the heat from the burner excites molecules in the pan making it hotter heat transfer through mass motion of fluid water air when the heated fluid is caused to move away from the source of the heat carrying energy with it 0 Ex Convection happens above a hot surface because hot air becomes less dense expands and rises The emission of energy in the form of waves or particles through space or different mediums 0 Ex Radio waves microwaves gamma rays visible light etc Initial Energy Sources 0 Terrestrial geothermic energy sources I heat Accounts for 66 of earth39s initial heat flow I heat Initial heat leftover heat from earth39s internal colliding particles Earth39s energy cycle 0 000 O Encompasses input and output pathways and reservoirs for energy energy may be positive or negative from one reservoir to another 99988 of earth39s energy is from solar radiation power winds rain storms ocean currents Energy out is an unchanged reflection albedo 40 of earth39s energy I Light colors reflect radiation better Derediation and reradiation conversions of one form of radiation to another New Section 1 Page 1