Weather Unit

The diagram below shows a weather instrument. Which weather condition is measured by this instrument?

• air humidity

• air pressure

• wind direction

• wind speed

A weather instrument is shown below. Which weather variable is measured by this instrument?

• wind speed

• precipitation

• cloud cover

• air pressure

The diagram below shows a weather instrument found at most weather stations.

The main function of this instrument is to measure which weather variable?

• wind speed

• wind direction

• air pressure

• relative humidity

The weather instrument below can be used to determine relative humidity.

Based on the temperature shown, the relative humidity is

• 19%

• 2%

• 33%

• 40%

Tags

NGSS.MS-ESS2-5

Which weather instrument is most useful in measuring relative humidity?

• barometer

• anemometer

• psychrometer

• wind vane

Base your answer on the weather map below, which represents a low-pressure system over NYS. The L on the map represents the center of the low-pressure system. Two fronts extend from the center of the low, and are labeled front 1 & front 2. Cloud cover can been omitted from the station models.

Which map best represents the type of fronts and direction of movement of these fronts in relation to the low-pressure center?

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Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is the general movement of the surface winds around the center of a low-pressure area in the Northern Hemisphere?

• counterclockwise and outward

• counterclockwise and inward

• clockwise and outward

• clockwise and inward

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Which station model shows a wind direction from the southwest?

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Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Liquid water sometimes turns into ice as it falls from the sky. Which present weather symbol on a station model represents this type of precipitation?

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Tags

NGSS.MS-ESS2-5

The lines on the map that are labeled are isobars showing air pressure. What is the probable air pressure, in millibars, at station D?

• 1015.0 mb

• 1017.0 mb

• 1021.0 mb

• 1036.0 mb

Tags

NGSS.MS-ESS2-5