UAG Earth Science Unit 1 - Unit Review 2019

DAY 011 CW
(p. 43) -  An instrument used to measure a weather variable is shown in the picture. Which weather variable is measured by this instrument? 
 

• wind direction 
• air pressure
• wind speed
• amount of rainfall 

DAY 011 
(p. 43) - Cloud droplets form around small particles in the atmosphere. Which of the following describes how the hurricane clouds formed from water vapor. 

• Air rose and cooled to the dewpoint, forming condensation
• Air sank and cooled to the dewpoint, forming condensation
• Air rose and heated to the dewpoint, forming condensation
• Air sank and heated to the dewpoint, forming condensation

DAY 011 
(p. 43) -  Which weather instrument is used to measure wind speed?

• anemometer
• wind vane
• psychrometer
• thermometer

DAY 011 HW (p.43)
 
( T or F ) The name of the weather instrument that measures wind speed is an anemometer. 

• True 
• False

DAY 011 HW (p.43)
 
( T or F ) The name of the weather instrument that measures air pressure is a wind vane. 

• True 
• False

DAY 011 HW (p.43)
 
( T or F ) When the dewpoint and temperature are far apart, there is a high chance of rain or other precipitation.

• True 
• False

DAY 011 HW (p.43)
 
( T or F ) Dewpoint is the temperature at which the air is totally empty of water. 

• True 
• False

DAY 011 
(p. 44) -  Which graph best shows the relationship between the probability of precipitation and the difference between air temperature and dewpoint?
 

• graph 1
• graph 2
• graph 3
• graph 4

DAY 011 
(p. 44) -  An observer measured the air temperature and the dewpoint and found the difference between them to be 12°C. One hour later, the difference between the air temperature and the dewpoint was found to be 4°C. Which statement best describes the changes that were occurring? 
 

• The chance of precipitation was decreasing. 
• The chance of precipitation was increasing. 
• The chance of precipitation had no change
• None of the above

DAY 012-013 
(p. 55) -  What is the dewpoint when the dry-bulb temperature is 8°C and the wet-bulb temperature is 2°C?

• 28°C
• 6°C
• 3°C
• –9°C