# Shared Flashcard Set

## Details

Geography 106
Global Energy Balance
25
Geography
02/10/2013

Term
 Wave- Partical Duality
Definition
 energy can be considered as either a wave or particle
Term
 [image]
Definition
 This is how it is diagramed
Term
 What is wavelength measured in?
Definition
 λ= wavelength in micrometers 1micrometer=.000039 inches
Term
 What is frequence represented by?
Definition
 V= frequency  (peaks per second)
Term
 What is the Speed of light represented by?
Definition
 C= speed of light  186,000 miles per second
Term
 Formula for relationship between wavelength,frequency, and speed of light
Definition
 λv=c Wavelength and frequencey have inverse relationship
Term
 What is a photon?
Definition
 This is thesmalles amount of energy that can be transported by an electromagnetic wave
Term
 Particle perspective formula
Definition
 E=hv h= planks constant 6.63 x 10-34 joules per second
Term
 how many calories is 1 joule?
Definition
 .24 calories
Term
 relationship of E= hv
Definition
 E (energy) increases when v (frequency) increases and frequency increses when when λ(wavelength) decreases This means shorter wavelengths have more energy
Term
 Electro magentic spectrum
Definition
 [image]
Term
 Energy Formula
Definition
 E=hv
Term
 solar spectrum breakdown
Definition
 10% UV 50% visible 40% Infared
Term
 Energy Flux
Definition
 amount of energy passing thorugh and area per unit time
Term
 Earths flux
Definition
 1370 wats per meter squared
Term
 watts in relation to joule
Definition
 1 watt= joule persecond
Term
 What does atmospheric scattering do
Definition
 reduces energy reaching earths surface
Term
 Inverse square law
Definition
 flux of incident energy decreases with distance from the source Ex: further you get from a campfire colder it gets double th distance 1/4 flux
Term
 What is a black body?
Definition
 Emits and absorbs energy 100% effeciency
Term
 Planks function
Definition
 shows emission of radiation at different wavelengths more radiation emitted at shorter wave lengths
Term
 Weins Law
Definition
 λmax= 2898/T T= temperature in kelvin wavelength with the highest radiation flux from object
Term
 Stefan-Boltzman law
Definition
 F=σε T4 epsilon= emissivity sigma=stefan constant 5.67 x108 w m-2 k-4 T= temperature in kelvin
Term
 how many watts does a human face emit?
Definition
 24 Watts
Term
 Earths temperature results from three factors
Definition
 solar flux albedo greenhouse effect
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