Relative Humidity

A dry-bulb temperature of 30°C and a wet-bulb temperature of 29°C were recorded at a weather station. What are the relative humidity and the most likely weather conditions?

• Relative humidity is 29% with clear skies

• Relative humidity is 29% with a good chance of snow.

• Relative humidity is 93% with clear skies.

• Relative humidity is 93% with a good chance of rain.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is the dewpoint if the relative humidity is 100% and the air temperature is 20°C?

• 0°C

• 10°C

• 20°C

• 100°C

If the dry bulb temp. is 12º C and the dewpoint is also 12º C, what is the relative humidity?

• 88%

• 90%

• 120%

• 100%

If the air temperature gets warmer, but the TOTAL amount of water vapor in the air stays the same, what will happen to the RELATIVE humidity?

• relative humidity will decrease

• relative humidity will increase

• relative humidity will stay the same

Tags

NGSS.MS-ESS2-5

If the air is only holding one-third as much moisture as it can possibly hold, what is the relative humidity?

• 50%

• 25%

• 33%

• 67%

An instrument that uses a wet and dry bulb to measure relative humidity. 

• Anemometer

• Barometer

• Psychrometer

• Wind Vane

If the air is "saturated", that means:

• the air is full of water

• the air is partially full of water

• it's amount of water vapor in the atmosphere right now

• how much liquid water it potentially can hold

Tags

NGSS.MS-ESS2-5

Which environment will probably have the lowest relative humidity?

• swamp

• desert

• rain forest

Tags

NGSS.MS-ESS2-4

The temperature to which air must be cooled in order to become saturated is the: 

• Relative Humidity

• Mixing Ratio

• Dew Point Temperature

• Wet-bulb Temperature

Tags

NGSS.MS-ESS2-5

What is the relative humidity if the air temperature is 25°C and the dewpoint is 15°C?

• A) 40%

• B) 50%

• C) 60%

• D) 70%