Download Atmosphere and Weather Unit Study Guide

Atmosphere and Weather Unit Study Guide
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What is the most abundant gas in the atmosphere?
List the layers of the atmosphere.
Most important weather phenomena occur in the ____.
Fifty percent of the gases that make up the atmosphere are found below ____ km.
Which gas is most important for understanding atmospheric processes?
Rain, snow, sleet, and hail are all examples of ____.
Which substance can change from one state of matter to another at the temperatures and pressures experienced at
Earth’s surface?
The change of state from a gas to a liquid is called ____.
Air that has reached its water-vapor capacity is said to be ____.
Which type of air can hold more water vapor?
The ratio of air’s water-vapor content to its capacity to hold water vapor at that same temperature is the ____.
____ the temperature to which air would have to be cooled to reach saturation.
The force exerted by the weight of the air above is called ____.
Which instrument is used to measure air pressure?
What is the ultimate energy source for most wind?
The lines on the weather map that connect points of equal pressure are ____.
Closely spaced lines of pressure indicate ____. Widely spaced isobars indicate ____.
Variations in air pressure from place to place are the principal cause of ____.
The Coriolis effect influences wind ____.
In the Northern Hemisphere, winds associated with a low-pressure system blow ____.
In the Northern Hemisphere, winds associated with a high-pressure system blow ____.
Fair weather can usually be expected with the approach of a _____ pressure system.
The general movement of low-pressure centers across the United States is from ____.
Which instrument is used to measure wind speed?
Which two properties characterize an air mass?
An air mass gets its characteristic properties from an area known as the ____.
Which type of air mass originates in northern Canada?
Maritime air masses form over ____.
An mT air mass is best described as ____.
Which air masses have the greatest effect on weather conditions in much of the United States?
Which air mass is the source of much of the precipitation in the central and eastern United States?
The boundary that separates different air masses is called a(n) ____.
On a weather map, which type of front is shown by a line with triangular points on one side?
What type of front forms when the surface position of the front does not move?
Along a front, which type of air is always forced upwards?
The weather behind a cold front is dominated by which of the following?
What type of front usually produces several hours of light-to-moderate precipitation over a large region?
Thunderstorms form when warm, humid air rises in a(n) ____.
The center of a tornado is characterized by its ____.
Tornadoes are most frequent from ____.
What causes a hurricane to lose energy when it moves onto land?
Essay (You will choose to answer two of the five essay questions on the test. Be prepared)
45. Describe the formation of the four types of fronts and the weather associated with each.
46. Describe the life cycle of a thunderstorm.
47. Explain how cloud cover can influence temperature in the lower atmosphere.
48. Describe each of the four mechanisms that cause air to rise.
49. Define the Coriolis effect and describe how it influences objects or fluids in each hemisphere.