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Winds & Air Pressure

Test Description: Test relates to wind and pressure patterns

Instructions: Answer all questions to get your test result.

1) A strong surface wind is blowing from Salem toward Roanoke. Roanoke has a barometric pressure of 1015 millibars. The barometric pressure in Salem would most likely be

A998 mb B1015 mb C1005 mb D1028 mb

2) In Roanoke, if the temperature of the atmosphere increases, the air pressure will most likely

Aremain the same Bdecrease Cboth increase and decrease Dincrease

3) The factor that most directly affects the wind speed between two locations is

Athe Coriolis Effect Bamount of cloud cover Cair pressure Dthe dewpoint temperature

4) On May 11, 2008 in the afternoon, the barometric pressure fell rapidly. This indicated

Adecreasing temperatures Bthe sky was becoming clear Cthe humidity was decreasing Dapproaching storms with high winds and hail

5) Clouds form when

Awater vapor does not condense and no condensation nuclei are present Bthe sky has been clear for a long period of time Cair is at or below its dewpoint and condensation nuclei are present Dthe Earth is rotating the slowest

6) The weather map shows isobars very close together (a steep pressure gradient). Which of these is most likely occurring?

Avery low temperatures Bstrong winds Cvery dry air Dlow visibility

7) As the wind velocity decreases, the distance between the isobars on the weather map will

Aremain the same Bdecrease Cnot change Dincrease

8) Which factor is most directly related to wind velocity?

Athe pressure gradient Bthe type of clouds Cthe dewpoint temperature Dthe relative humidity

9) On May 10, in Roanoke, the barometric pressure was 29.88 inches and rising. This reading most likely indicates

Aslowly improving conditions Brapidly clearing skies Can approaching storm Da tornado approaching

10) Air pressure is usually highest when the air is

Awarm and humid Bwarm and dry Ccold and dry Dcold and humid

*select an answer for all questions

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