continues to rise until it reaches an altitude at which the surrounding air has a similar temperature
question
What causes the development of most clouds and precipitation in the atmosphere?
answer
rising air
question
Why would a parcel of air rise relative to other air in the atmosphere?
answer
A parcel of air will rise if it has a lower density than the surrounding air.
question
Which factor is most important for determining the density of a parcel of air?
answer
Temperature
question
What will happen if a parcel of air is colder than surrounding air?
answer
A colder parcel of air will sink in the atmosphere on its own.
A colder parcel of air will rise in the atmosphere if forced.
question
What will happen to a parcel of air as it rises?
answer
A rising parcel of air will expand and cool.
question
If two parcels of air start at the same temperature at 2000 meters above Earth's surface, which would end up with a higher temperature, an unsaturated parcel of air at Earth's surface or a saturated parcel of air 4000 meters above Earth's surface?
answer
An unsaturated parcel of air at Earth's surface would be warmer, since air cools as it rises and warms as it descends, regardless of any temperature difference due to saturation.
question
Two parcels of air, one dry and one wet, sit at the same temperature at sea level. What will the temperature difference between the two bodies of air be after they rise to 2000 meters elevation?
answer
The dry parcel of air will be 8 degrees colder than the wet parcel of air.
question
In general, when will clouds begin to form out of a parcel of air?
answer
When a rising parcel of air has reached a temperature below its dew point
question
Which process can add heat to a rising body of air?
answer
Condensation
question
What must break in order for water to change from solid to liquid to gas?
answer
hydrogen bonds between water molecules
question
How much heat energy is needed to melt 1 gram of ice?
answer
80 calories of heat energy
question
Why does temperature NOT initially increase as energy is added after ice begins to melt?
answer
The added energy is used to break hydrogen bonds between water molecules.
question
What physically breaks hydrogen bonds between water molecules as ice melts?
answer
The movement of water molecules
question
How much heat energy is needed to turn 1 gram of water at 100 degrees Celsius into water vapor?
answer
540 calories of heat energy
question
How can water vapor become ice?
answer
Water vapor can become liquid water through the release of heat energy, and then become ice through the release of more heat energy. Water vapor can also become ice directly through the release of heat energy.
question
What do we call the energy used to melt ice once the ice becomes water?
answer
Latent heat of melting
question
The density (mass per volume) of most liquids increases as the __________ is lowered.
answer
temperature
question
The density of pure water reaches its maximum density, or plateaus, at an approximate temperature of __________.
answer
4 degrees C
question
What causes water's density to decrease when it freezes?
answer
hydrogen bonds
Haven't found what you need?
Search for quizzes and test answers now
Quizzes.studymoose.com uses cookies. By continuing you agree to our cookie policy
