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Exam 18: Air Pressure and Wind

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Question 31

Multiple Choice

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An instrument that measures air pressure using a partially evacuated chamber is called an_____ barometer.

A) barograph
B) caliper
C) mercurial
D) aneroid

E) All of the above
F) A) and D)

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Question 32

Multiple Choice

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The Coriolis effect influences _____ .

A) only wind speed
B) only wind direction
C) both wind speed and wind direction
D) neither wind speed nor wind direction

E) A) and D)
F) A) and C)

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Question 33

Multiple Choice

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Standard sea level air pressure is_____ millibars.

You are on a boat in a fiord in Glacier Bay, Alaska. It is a clear sunny day with temperatures near 20°C with no wind. Within 5 minutes the sky is still clear but the wind is blowing at 30 knots down valley, the sea is filled with whitecaps, and the temperature drops to 5°C. What just happened?

The Coriolis effect is strongest at the_____ .

You might wonder why a millibar isn't exactly 1/1000^th of an atmosphere. The unit is actually related to the old CGS units because atmospheric pressure is close to this unit. In CGS units 1 bar = 1000 dynes/cm². Pressure is often incorrectly reported as kg/cm², which is neither a legitimate pressure unit nor a standard SI unit pressure is force/unit area, and kg are a mass unit, and SI units never mix kg and cm.. So let's straighten out your friends on these units. Standard air pressure in this incorrect unit is 1.034 kg/cm². The weight of a kg at the earth's surface is 980,000 dynes. So what is standard air pressure in millibars?

If you live in southwestern North America and are experiencing drought conditions, what do you hope will happen?

An isobar is a line connecting places of equal _____ .

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Most deserts are associated with the_____ .

A southwest wind blows toward the_____ .

The mercurial barometer was invented by_____ .

High pressure systems are usually associated with_____ weather.

Fast moving currents of air found near the top of the troposphere are called_____ .

The Coriolis effect influences _____ .

Considering the theory of plate tectonics and the movement of landmasses over geologic time, would you expect atmospheric circulation of the past to be the same as we see today? Why or why not? Consider the factors that determine global wind patterns and whether they have changed over time.

Standard sea level pressure in inches of mercury is _____

The ultimate cause of a sea breeze is the_____ heating of land and water.

The most precise instrument for measuring wind speed is a _____ .

The _____ is the main driving force behind wind.