Fronts
the transition area where a mass of warm air moves to replace a mass of cold air
warm front
the measurement of the weight of the gas above an object on a given surface area
air pressure
movement of air from high to low pressure
wind
list the layers in order from closest to the earth to furthest away
Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere
explain convection
warm air rises, cold air sinks
usually drawn using a solid blue line with triangles pointing in the direction of the warm air that will be replaced
cold front
this air pressure system rotates clockwise in the southern hemisphere
low pressure
how is wind measured
speed and direction
This layer is where weather occurs
Troposphere
Energy that is radiated or transmitted in the form of rays or waves or particles
Radiation
when a cold front and a warm front meet up, but neither moves out of the way
stationary front
formula for air pressure
f/a or force/area
winds that are generated by changes in air pressure and temperatures locally
local winds
This is where the ozone layer is found
Stratosphere
Any of the high-speed, high-altitude air currents that circle the Earth in a westerly direction.
Jet Stream
Cold fronts move faster than warm fronts, and sometimes a cold front catches up to a warm front
occluded front
this air pressure system rotates counter-clockwise in the northern hemisphere
low pressure
Landforms
Water and Land
factors that affect wind
Clara wants to know if an item will sink, float, or suspend in water. The item has a density of 3.4 g/cm3. Will the item sink, float, or suspend? Why?
Sink, water is 1.0 g/cm3
As elevation increases, air pressure _____________.
decreases
satellites that show fronts from space
What is the difference between high pressure and low pressure systems?
High: Denser, fair weather, blue H
Low: Less dense, poor weather, red L
created by both the spin of the Earth (Coriolis effect) and the differences in temperature between the equator and the polar areas
global winds
You have a rock with a volume of 15cm3 and a mass of 45 g. What is its density?
3 g/cm3
The four different types of air fronts
warm, cold, stationary, occuluded