REGENTS EARTH SCIENCE Name...2018/12/19 · Name Date Period ! 1 REGENTS EARTH SCIENCE Dew-Point &...
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Name Date Period 1 REGENTS EARTH SCIENCE Dew-Point & Relative Humidity Worksheet Activity 1: Use the “Dew-Point” and “Relative Humidity” charts on ESRT pg12 to complete the following table:
Transcript of REGENTS EARTH SCIENCE Name...2018/12/19 · Name Date Period ! 1 REGENTS EARTH SCIENCE Dew-Point &...
Name
Date Period
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REGENTS EARTH SCIENCE Dew-Point & Relative Humidity Worksheet
Activity 1: Use the “Dew-Point” and “Relative Humidity” charts on ESRT pg12 to complete the following table:
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(Dry-bulb minus Wet-bulb)
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Activity 2: Regents Questions: 1) What is the relative humidity when the air temperature is 29° C and the wet-bulb temperature is 23° C?
A) 20% B) 6% C) 60% D) 54% 2) What is the dewpoint when the air temperature is 26° C and the relative humidity is 77%?
A) 20° C B) 23° C C) 22° C D) 3° C Questions 3 and 4 refer to the following: The weather instrument shown below can be used to determine relative humidity and dewpoint.
3) Based on the temperatures shown on the given weather instrument, what is the relative humidity?
A) 33% B) 2% C) 19% D) 40% 4) Based on the values shown on the given weather instrument, what is the dewpoint?
A) 33° C B) -5° C C) 2° C D) 8° C 5) A barometric pressure of 1021.0 millibars is equal to how many inches of mercury?
A) 30.50 B) 30.25 C) 30.15 D) 29.88 6) Which statement best explains why an increase in the relative humidity of a parcel of air generally increases the
chance of precipitation? A) The dewpoint is farther from the condensation point, causing rain. B) The amount of moisture in the air is greater, making the air heavier. C) The specific heat of the moist air is greater than the drier air, releasing energy. D) The air temperature is closer to the dewpoint, making cloud formation more likely.
7) Which weather variable can be determined by using a psychrometer?
A) relative humidity C) barometric pressure B) wind speed D) cloud cover
8) What is the relative humidity when the dry-bulb temperature is 16° C and the wet-bulb temperature is 14° C?
A) 14% B) 13% C) 80% D) 90% 9) On a cold winter day, the air temperature is 2° C and the wet-bulb temperature is -1° C. What is the relative
humidity at this location? A) 37% B) 51% C) 6% D) 83%
10) A parcel of air has a dry-bulb temperature of 24° C and a relative humidity of 55%. What is the dewpoint of this
parcel of air? A) 24° C B) 14° C C) 6° C D) 29° C
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