Weather Instruments and Their Functions

The video tutorial explains various weather instruments used to observe and predict weather. It covers thermometers for temperature measurement, barometers for air pressure, anemometers and wind vanes for wind speed and direction, rain gauges for precipitation, and sling psychrometers for humidity. Each instrument's function and significance in weather prediction are discussed.

What is the primary purpose of weather instruments?

• To calculate distances

• To measure time

• To predict future weather

• To entertain people

Which unit of temperature is commonly used in the United States?

• Fahrenheit

• Kelvin

• Rankine

• Celsius

What does a barometer measure?

• Humidity

• Temperature

• Air pressure

• Wind speed

What weather condition is typically associated with low air pressure?

• Strong winds

• Clear skies

• Cloudy skies

• High temperatures

What instrument is used to measure wind speed?

• Barometer

• Thermometer

• Anemometer

• Rain gauge

How is wind direction determined?

• By the direction the wind is blowing towards

• By the direction the wind is coming from

• By the speed of the wind

• By the temperature of the wind

Where should a rain gauge be placed for accurate measurement?

• Near a building

• Under a tree

• Inside a house

• In an open area

What is the purpose of the wet bulb in a sling psychrometer?

• To measure wind speed

• To measure air pressure

• To measure temperature

• To measure humidity

What happens to the wet bulb temperature after slinging the psychrometer?

• It increases

• It fluctuates randomly

• It decreases

• It remains the same

What does the dew point indicate?

• The amount of rainfall

• The air pressure

• The speed of the wind

• The temperature at which water vapor condenses