1. Unit 7 Review
2014 : Mrs. Knowlton

2. Directions Get out a sheet of paper-
Write each question & number as you go-
Write your response in 1 color and the correct answer in a different color.
Grade yourself- 10 pts each
Add to the back of your notebook
REVIEW & complete all work!

3. The weather characteristics of an air mass result primarily from its ___.
1. its place of origin
2. size and shape
3. rate of movement
4. direction of movement

4. Why do clouds and precipitation usually occur along the fronts?
1. The warm air rises, expands, and cools
2. The warm air sinks, expands, and warms
3. The cool air rises, compresses, and cools
4. The cool air sinks, compresses, and warms

5. The planetary winds on Earth are indicted by the curving arrows in the diagram to the left. The curved paths of the planetary winds are a result of ___.
1. changes in humidity
2. changes in temperature
3. Earth’s rotation on its axis
4. Earth’s gravitational force

6. Air pressure is usually higher when the air is ___.
1. Warm and humid
2. Warm and dry
3. Cold and humid
4. Cold and dry

7. An air mass that originates over the northern Pacific Ocean and moves southward over the United States would most likely be labeled on a weather map at ___.
1. mP
2. mT
3. cP
4. cT

8. Which type of air mass would most likely have low humidity and high air temperature?
1. cT
2. cP
3. mT
4. mP

9. Weather along most fronts is usually cloudy with precipitation because the warm air along most fronts is usually ___.
1. sinking and cooling, causing water to evaporate
2. sinking and warming, causing water to evaporate
3. rising and cooling, causing water vapor to condense
4. rising and warming, causing water vapor to condense

10. Compared to a maritime tropical air mass, a maritime polar air mass has a ___.
1. higher temperature and more water vapor
2. higher temperature and less water vapor
3. lower temperature and more water vapor
4. lower temperature and less water vapor

11. The cP air mass is identified on the basis of its temperature and ___.
1. wind direction
2. cloud cover
3. moisture content
4. windspeed

12. Which geographic area is a common source region for cP air masses that move into North Carolina?
1. Southwestern United States
2. Central Canada
3. The north Pacific Ocean
4. The Gulf of Mexico