energy
� ability/Capability to do work
� potential for causing change
kinetic energy
energy of motion
potential energy
Energy that is stored?
Temperature
the measure of the average kinetic speed of atoms and molecules
Heat
Energy in the process of Being Transferred from one object to another
advection
horizontal transfer of heat energy by wind
conduction
transfer of heat from one molecule to the next through a substance
convection
transfer of heat by mixing of a fluid (liquid or gas)
Thermals
In the atmosphere this type of energy transfer takes the form of
electromagnetic radiation
� permits the transfer of energy through a vacuum
� energy transfer mechanism does not require a special medium
EM Spectrum
full range of electromagnetic radiation
wien's Law
hotter bodies radiate energy at short wavelengths
stefan-boltzman law
hotter body emits more energy than a cooler body
density
� measure of mass per unit of volume
� mass/volume
air pressure
air is constantly pushing down on us
low pressure
upward movement of air will result in
Inversion
situation when temperature rises with increasing elevation
Ozone Layer
part of the atmosphere that protects us from harmful UV radiation
Ionosphere
that part of the atmosphere that bounces radio signals back to earth and is responsible for the phenomena known aurora borealis
the first law of thermodynamics tells us?
� energy is not created or destroyed
� changed or transferred from one from to another
What happens to air when it is heated?
Molecules move faster and father apart
mechanisms of energy transfer
� advection
� conduction
� convection
� electromagnetic radiation
A Very Cool Body Will Emit Lots of Energy At Much Shorter Wavelengths Than That Of A Very Hot Body?
false
a volume containing a fixed mass that is compressed will result in a _____ in density
increase
air is _____ dense at higher altitudes than that a lower altitudes
more
With increasing elevation BOTH Pressure & Density will Decrease?
True
Average Air pressure at sea level is what?
1013.2 mb
Evaporation is a warming process
False; it is a cooling process
� The warming process is Condensation
What proportion of the earth's atmosphere is composed of oxygen and nitrogen?
� 21% oxygen
� 78% nitrogen respectively
the atmosphere can be categorized into two chemical layers.
� homosphere
� heterosphere
the four distinct temperature layers of the atmosphere
� Troposphere
Temp decreases with increase elevation
� Stratosphere
Temp increases with elevation
� Mesosphere
Temp decreases with increasing elevation
� Thermosphere
Temp increase with elevation
temperature decreases with increasing elevation in the troposphere. Why?
because the air is heated by energy in the surface.