EAPS 106 EXAM 4 (EAPS 106 EXAM 4/FINAL EXAM) | 106
QUESTIONS AND ANSWERS | WITH COMPLETE SOLUTION.
What happens to warm moist air as it rises? Answer - it expands as it raises
causing to cool (due to lower pressure)
What happens to warm moist air as it cools? Answer - water vapor contained
in the air condenses back into droplets and ice crystals
How are clouds formed? Answer - warm moist air containing water vapor rises,
cools, and condenses into visible liquid droplets and crystals
How does atmospheric pressure change with altitude? Answer - higher
altitude => lower pressure
What kind of clouds create thunderstorms? Answer - Cumulonimbus clouds:
large, tall clouds which have accumulated more water vapor for rain and have
stronger winds
What type of weather do cold fronts cause and why? Answer - thunderstorms:
cold air moves quickly into warm (moist) air and pushes it high into the
atmosphere cooling it quickly to form large Cumulonimbus clouds
, What type of weather do warm fronts cause and why? Answer - light/gentle
showers: warm fronts typically gain altitude gradually forming a light, Cumulus
clouds
Is dry air or moist air heavier and why? Answer - dry air: dry air is far more
dense than moist air (diatomic nitrogen and oxygen carry far more mass per
molecule volume than water)
What causes lightning? Answer - friction between ice crystals in the clouds
causes negative charge to accumulate at the bottom of the clouds which then
rushes towards the (positively-charged relative to the clouds) ground
What causes thunder? Answer - as lightning travels, it superheats the air
around it which then rapidly expands releasing a "sonic boom"
What are some good lightning safety protocols? Answer - - avoid tall isolated
objects (do not shelter under them)
- thunder cannot occur without lightning: take shelter when you hear it
- the Lightning Crouch can redirect electricity away from your heart
How does hail form in thunderstorms? Answer - convective cells in the clouds
lift frozen water droplets above and below the freezing line accumulating more
and more ice until they get too heavy to be supported by the clouds
What a microburst? Answer - a strong, sudden downdraft (burst of descending
cold air) that can strike down trees, houses, planes, etc. with incredible force
What is the difference between a supercell and a regular thunderstorm?
Answer - supercells rotate
QUESTIONS AND ANSWERS | WITH COMPLETE SOLUTION.
What happens to warm moist air as it rises? Answer - it expands as it raises
causing to cool (due to lower pressure)
What happens to warm moist air as it cools? Answer - water vapor contained
in the air condenses back into droplets and ice crystals
How are clouds formed? Answer - warm moist air containing water vapor rises,
cools, and condenses into visible liquid droplets and crystals
How does atmospheric pressure change with altitude? Answer - higher
altitude => lower pressure
What kind of clouds create thunderstorms? Answer - Cumulonimbus clouds:
large, tall clouds which have accumulated more water vapor for rain and have
stronger winds
What type of weather do cold fronts cause and why? Answer - thunderstorms:
cold air moves quickly into warm (moist) air and pushes it high into the
atmosphere cooling it quickly to form large Cumulonimbus clouds
, What type of weather do warm fronts cause and why? Answer - light/gentle
showers: warm fronts typically gain altitude gradually forming a light, Cumulus
clouds
Is dry air or moist air heavier and why? Answer - dry air: dry air is far more
dense than moist air (diatomic nitrogen and oxygen carry far more mass per
molecule volume than water)
What causes lightning? Answer - friction between ice crystals in the clouds
causes negative charge to accumulate at the bottom of the clouds which then
rushes towards the (positively-charged relative to the clouds) ground
What causes thunder? Answer - as lightning travels, it superheats the air
around it which then rapidly expands releasing a "sonic boom"
What are some good lightning safety protocols? Answer - - avoid tall isolated
objects (do not shelter under them)
- thunder cannot occur without lightning: take shelter when you hear it
- the Lightning Crouch can redirect electricity away from your heart
How does hail form in thunderstorms? Answer - convective cells in the clouds
lift frozen water droplets above and below the freezing line accumulating more
and more ice until they get too heavy to be supported by the clouds
What a microburst? Answer - a strong, sudden downdraft (burst of descending
cold air) that can strike down trees, houses, planes, etc. with incredible force
What is the difference between a supercell and a regular thunderstorm?
Answer - supercells rotate
