UNIT TEST
The relationship between temperature and the distance from the earth's surface and troposphere
As distance increases---temperature decreases
The relationship between temperature and volume, density, and mass in air.
Temperature increases
Volume Increases
Density decreases
Mass stays the same
Wind depends on what two factors?
1. The difference in pressure between the higher and lower areas of pressure.
2. The distance between the two areas.
Pressure Gradient Force
The force that set air int motion as a result of the pressure differences.
The larger the difference in pressure between two areas or the smaller the distance between he two areas the larger the PGF = stronger wind
Air movement based on density
less dense air rises
more dense air sinks
air movement based on temperature
warm air rises, cold air sinks
Causes of high and low pressure systems
high-pressure systems form when air sinks
low-pressure systems form when air rises
momvement of air based on pressure
air moves from areas of high pressure to areas of low pressure
map symbols for cold front and warm front
cold=blue triangles
warm=red semi-circles
Factors necessary for precipitation to form along fronts
a difference in density between the warm and cold air masses, an upper atmosphere that has temps lower than the air in the rising warm air mass, and condensation of water vapor in the rising warm ai mass
barometer
measures atmospheric pressure
As pressure increases it pushes down causing the liquid in the barometer to rise. When pressure decreases, the liquid will fall
charles law
when a gas is heated, it tends to expand.
when temp increases, volume increases