Wind Measurement and Wind Vectors Quiz
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Questions and Answers

What is high pressure?

  • Pressure that is equal to average
  • Pressure that is higher than average (correct)
  • Pressure that is unrelated to average
  • Pressure that is lower than average
  • What did Torricelli use to measure pressure?

  • Mercury (correct)
  • Radiation
  • Water
  • Air
  • What did Torricelli observe when he pumped water from a well?

  • The water temperature changed
  • The water came shooting out with little effort (correct)
  • The water came out with great difficulty
  • The water did not come out at all
  • What was the record high pressure mentioned in the text?

    <p>In Siberia in December 1968</p> Signup and view all the answers

    In which ocean are typhoons typically found?

    <p>Pacific Ocean</p> Signup and view all the answers

    What does low pressure indicate in a typhoon?

    <p>Lifting air</p> Signup and view all the answers

    Why do we use millibars to represent pressure instead of just 1.0 bar?

    <p>To show variation in pressure</p> Signup and view all the answers

    What is the main cause of wind according to the text?

    <p>Differential heating</p> Signup and view all the answers

    What instrument can be used to measure atmospheric pressure?

    <p>Barometer</p> Signup and view all the answers

    What is the relationship between wind patterns and land masses?

    <p>Land masses affect wind direction</p> Signup and view all the answers

    Which instrument is used to measure wind speed and direction?

    <p>Wind vane</p> Signup and view all the answers

    In what unit is wind direction typically measured?

    <p>Degrees</p> Signup and view all the answers

    How are winds named?

    <p>Based on the direction they come from</p> Signup and view all the answers

    What does the term 'anemometer' refer to?

    <p>A device that measures wind speed</p> Signup and view all the answers

    How do anemometers typically measure wind speed?

    <p>Using a cup or flywheel mechanism</p> Signup and view all the answers

    Which force is responsible for driving the winds from high pressure to low pressure?

    <p>Pressure gradient force</p> Signup and view all the answers

    What is the term for a high pressure center?

    <p>Anticyclone</p> Signup and view all the answers

    In which direction does the air curve due to the Coriolis effect in the Northern Hemisphere?

    <p>To the right</p> Signup and view all the answers

    What causes the Coriolis force?

    <p>Earth's rotation</p> Signup and view all the answers

    What does the pressure gradient force result from?

    <p>High and low pressure</p> Signup and view all the answers

    Where is the Coriolis force the greatest?

    <p>At the poles</p> Signup and view all the answers

    Which of the following is a major driving component of wind patterns?

    <p>Subtropical high pressure systems</p> Signup and view all the answers

    In which direction does air move out of a high pressure system?

    <p>Clockwise</p> Signup and view all the answers

    What is the band of low pressure near the equator called?

    <p>Intertropical Convergence Zone</p> Signup and view all the answers

    Which region is considered the intertropical convergence zone (ITCZ)?

    <p>The equator</p> Signup and view all the answers

    What causes the air to lift and create low pressure in the equator region?

    <p>Heating of the equator</p> Signup and view all the answers

    What happens to the intertropical convergence zone (ITCZ) during the summer in the northern hemisphere?

    <p>It shifts northward</p> Signup and view all the answers

    Which force affects the movement of air from high to low pressure?

    <p>Pressure gradient force</p> Signup and view all the answers

    What is the horizontal component of convection called?

    <p>Advection</p> Signup and view all the answers

    What does the ITCZ stand for?

    <p>Intertropical Convergence Zone</p> Signup and view all the answers

    Which direction does the air flow at the equator?

    <p>Counterclockwise</p> Signup and view all the answers

    What is the name of the high pressure belt where the air descends?

    <p>Subtropical High</p> Signup and view all the answers

    Which wind belt is the result of air descending at the subtropical high and moving northward?

    <p>Westerlies</p> Signup and view all the answers

    What happens to the air when it reaches the poles?

    <p>It descends and becomes the Polar Easterlies</p> Signup and view all the answers

    What is the horizontal movement of the air called?

    <p>Circulation</p> Signup and view all the answers

    Which weather phenomenon is caused by cold air pulling up in a valley and causing moisture to condense?

    <p>Valley fog</p> Signup and view all the answers

    What is the term for the temperature at which condensation begins in the air?

    <p>Dew point temperature</p> Signup and view all the answers

    Which winds are known for their extreme dryness and are responsible for causing fires in canyons?

    <p>Santa Ana winds</p> Signup and view all the answers

    Which region experiences extremely strong winds flowing down off the Rockies onto the Great Plains?

    <p>East side of the Rockies</p> Signup and view all the answers

    What is the term for the pressure system where air is lifting up?

    <p>Low pressure</p> Signup and view all the answers

    Which mountain is mentioned as the highest point in California?

    <p>Mount Whitney</p> Signup and view all the answers

    Which force causes the air to curve due to the rotation of the Earth in the Northern Hemisphere?

    <p>Coriolis force</p> Signup and view all the answers

    What is the term for the band of low pressure near the equator?

    <p>Intertropical convergence zone</p> Signup and view all the answers

    Which pressure system funnels air through a gap and slides down a mountain?

    <p>High pressure</p> Signup and view all the answers

    Which pressure system is associated with descending air in the desert area?

    <p>High pressure</p> Signup and view all the answers

    Study Notes

    Introduction to Wind Measurement and Wind Vectors

    • Wind vane and anemometer are used to measure wind speed and direction.
    • Wind direction is typically measured in degrees, with 0 degrees indicating north.
    • Winds are named based on the direction they come from, not the direction they go to.
    • The term "anemometer" refers to a device that measures wind speed.
    • An anemometer typically uses a cup or flywheel mechanism to measure wind speed.
    • Anemometers are commonly used in weather forecasting and can be found in weather maps.
    • Wind vectors represent wind direction and speed, with the length of the line indicating wind speed.
    • Wind vectors are often represented by arrows on weather maps.
    • The pressure gradient force, temperature differences, and the Coriolis force contribute to wind speed.
    • Air flows from areas of high pressure to areas of low pressure.
    • The Coriolis force causes winds to curve to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
    • Wind speed increases with larger pressure differences between high and low pressure systems.

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    Description

    Test your knowledge on wind measurement and wind vectors with this introductory quiz. Learn about the tools used to measure wind speed and direction, how wind vectors represent wind speed, and the factors that contribute to wind speed. Challenge yourself and discover more about the fascinating world of wind!

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