Why do winds not move straight into a low-pressure centre?
Answer and explanation
Correct answer: Because the Coriolis force and friction alter the wind direction
The pressure-gradient force pulls air toward lower pressure, but Earth’s rotation produces the Coriolis effect, which deflects moving air from a straight path. Near the surface, friction also slows the wind and changes its balance with the pressure-gradient and Coriolis forces. Consequently, winds spiral toward a low-pressure centre rather than moving directly into it.
Frequently asked questions
What is the correct answer to this question?
Because the Coriolis force and friction alter the wind direction
Why is this the correct answer?
The pressure-gradient force pulls air toward lower pressure, but Earth’s rotation produces the Coriolis effect, which deflects moving air from a straight path. Near the surface, friction also slows the wind and changes its balance with the pressure-gradient and Coriolis forces. Consequently, winds spiral toward a low-pressure centre rather than moving directly into it.
Which subject and chapter does this question cover?
This is a Class 12 Geography question. Chapter: Atmospheric Circulation and Weather Systems.
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