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Questions and Answers
What is the primary purpose of a weather vane?
What is the primary purpose of a weather vane?
The Beaufort scale ranges from 0 to 12, with 0 indicating a hurricane.
The Beaufort scale ranges from 0 to 12, with 0 indicating a hurricane.
False
What instrument is used to measure wind speed?
What instrument is used to measure wind speed?
anemometer
The _____ winds are those that always blow in the same direction.
The _____ winds are those that always blow in the same direction.
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Match the following wind types with their descriptions:
Match the following wind types with their descriptions:
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Study Notes
Wind Direction and Strength
- Wind is described by its strength (or speed) and direction.
- Wind direction is observed using a weather vane on buildings or flags on flagpoles.
- Wind is named according to the compass direction it originates from (e.g., a north wind blows from the north).
- A wind sock also indicates wind direction.
Prevailing Winds
- Prevailing winds consistently blow in the same direction.
- Prevailing winds are associated with areas of high and low air pressure.
- The equator has low air pressure.
- The three main belts of prevailing winds are the trade winds, westerlies, and polar easterlies.
- Trade winds are named after sailing ships.
Beaufort Scale
- The Beaufort scale measures wind speed.
- It was developed by Admiral Sir Francis Beaufort in 1805.
- The scale ranges from 0 (dead calm) to 12 (and above, hurricane).
- Wind speeds are listed in km/h.
Measuring Wind Speed
- An instrument called an anemometer measures wind speed.
- An anemometer includes four cups that spin with the wind.
- The spinning speed is measured and indicated electronically.
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Description
This quiz explores the fundamental concepts of wind, including its direction, strength, and measurement. Understand how wind is named, the significance of prevailing winds, and the details of the Beaufort scale. Test your knowledge on the instruments used to measure wind speed and the characteristics of different wind types.
