Atmosphere, Dewpoint & Humidity

Which change in the heat energy content of water occurs when water changes phase from a liquid to a solid?

• gain of 334 Joules of heat energy per gram

• release of 334 Joules of heat energy per gram

• gain of 2260 Joules of heat energy per gram

• release of 2260 Joules of heat energy per gram

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The graph below shows the heating effect that different land uses have on surface air temperatures on a summer afternoon. Which land type has the least absorption of solar radiation?

• commercial

• downtown

• residential

• parks

A city located on the coast of North America has warmer winters and cooler summers than a city at the same elevation and latitude located near the center of North America. Which statement best explains the difference between the cities' climates?

• Ocean surfaces change temperature more slowly than land surfaces.

• Warm, moist air rises when it meets cool, dry air.

• Wind speeds are usually greater over land surfaces than over ocean surfaces.

• Ocean surfaces have a lower specific heat than land surfaces

Tags

NGSS.MS-ESS2-6

Which graph best shows the general relationship between altitude and temperature in the troposphere?

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The map below shows a portion of the western United States and Canada. Two cities in Canada, Vancouver and Winnipeg, are labeled on the map. Which graph best represents the average monthly air temperatures for Vancouver and Winnipeg?

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Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

A psychrometer is used to determine which weather variables?

• wind speed and direction

• % of cloud cover and could height

• air pressure and air temperature

• relative humidity and dew point

What is the relative humidity when the dry-bulb temperature is 16°C and the wet-bulb temperature is 14°C?

• 90%

• 80%

• 14%

• 13%

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 relative humidity was decreasing and the chance of precipitation was decreasing.

• The relative humidity was decreasing and the chance of precipitation was increasing.

• The relative humidity was increasing and the chance of precipitation was decreasing.

• The relative humidity was increasing and the chance of precipitation was increasing.

Tags

NGSS.MS-ESS2-5

The graph below shows the maximum possible amounts of water vapor that air can hold at different temperatures. What is the approximate maximum amount of water vapor that a cubic meter of air can hold at 20°C?

• 15 g

• 20 g

• 25 g

• 30 g

Which current has a cooling effect on the climate of the west coast of South America?

• Falkland current

• Peru Current

• Benguela Current

• Brazil current

Tags

NGSS.MS-ESS2-6