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Which of the following is not a factor affecting wind?
- a)Pressure Gradient
- b)Friction
- c)Magnetism
- d)Coriolis Effect
- e)None of the above/More than one of the above
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Which of the following is not a factor affecting wind?a)Pressure Gradi...
Factors Affecting Wind
Wind is primarily influenced by several meteorological factors. Among the options provided, magnetism does not play a significant role in wind generation or direction.
Pressure Gradient
- The pressure gradient is the difference in atmospheric pressure between two locations.
- Winds flow from high-pressure areas to low-pressure areas, with the strength of the wind proportional to the pressure difference.
Friction
- Friction refers to the resistance exerted by the Earth's surface on the wind.
- It affects wind speed and direction, especially at lower altitudes where terrain, vegetation, and surface roughness come into play.
Coriolis Effect
- The Coriolis effect arises from the rotation of the Earth and affects the direction of wind.
- It causes winds in the Northern Hemisphere to deflect to the right and those in the Southern Hemisphere to deflect to the left.
Magnetism
- Magnetism, while an important physical phenomenon, does not influence wind patterns or velocity.
- It does not play a role in the movement of air masses, making it the correct answer as the factor not affecting wind.
Conclusion
- In summary, the factors that directly influence wind include pressure gradients, friction, and the Coriolis effect.
- Magnetism is unrelated to wind dynamics, confirming that option 'C' is indeed the correct answer.
Wind is primarily influenced by several meteorological factors. Among the options provided, magnetism does not play a significant role in wind generation or direction.
Pressure Gradient
- The pressure gradient is the difference in atmospheric pressure between two locations.
- Winds flow from high-pressure areas to low-pressure areas, with the strength of the wind proportional to the pressure difference.
Friction
- Friction refers to the resistance exerted by the Earth's surface on the wind.
- It affects wind speed and direction, especially at lower altitudes where terrain, vegetation, and surface roughness come into play.
Coriolis Effect
- The Coriolis effect arises from the rotation of the Earth and affects the direction of wind.
- It causes winds in the Northern Hemisphere to deflect to the right and those in the Southern Hemisphere to deflect to the left.
Magnetism
- Magnetism, while an important physical phenomenon, does not influence wind patterns or velocity.
- It does not play a role in the movement of air masses, making it the correct answer as the factor not affecting wind.
Conclusion
- In summary, the factors that directly influence wind include pressure gradients, friction, and the Coriolis effect.
- Magnetism is unrelated to wind dynamics, confirming that option 'C' is indeed the correct answer.
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Which of the following is not a factor affecting wind?a)Pressure Gradi...
IMPORTANT FACTS-:
Factors Affecting Wind Motion-:
Wind direction and speed are affected by
Factors Affecting Wind Motion-:
Wind direction and speed are affected by
- Pressure Gradient Force
- Coriolis effect or Coriolis force
- Centripetal Acceleration
- Land Friction
- Gravitational Force of the Earth
Air-:
- The horizontal movement of air is called wind.
- Wind is caused by the horizontal difference in atmospheric pressure.
- As water flows from high pressure areas to low pressure areas, air flows from high pressure areas to low pressure areas.
Pressure Gradient Force-:
- The difference in the horizontal distribution of atmospheric pressure causes winds to flow from areas of high pressure to areas of low pressure.
- The rate of change of pressure per unit distance is called the pressure gradient and the force applied by the pressure gradient to drive the winds is known as the pressure gradient force.
- The greater the pressure gradient and its force, the greater the speed of the wind.
Land Friction-:
- They cause friction and blockage in the winds of the Earth's surface and affect their speed and direction.
- Land features such as mountains, plateaus and valleys cause changes in the speed and direction of winds.
- At an altitude of 2 to 3 km above the Earth's surface, the winds are free from frictional effects and are controlled by the pressure gradient and the Coriolis force.
Ferrel's law-:
- According to Ferrel's law, the winds in the Northern Hemisphere turn to their right and in the Southern Hemisphere to their left
- The trade winds in both the hemispheres turn west.
- The direction of the trade winds in the northern hemisphere is from north-east to south-west and in the southern hemisphere the direction of the trade winds is from south-east to north-west, so these trade winds are called north-east trade winds in the northern hemisphere and in the Southern Hemisphere it is called the South-East trade wind.
- It is also called the "Coriolis force".
Gravitation Forces of the Earth-:
- The gravitational force of the eastern is the same at all places.
- The air pressure is high in the lower layers of the atmosphere and as we move upwards in the atmosphere, the air mass decreases.
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Which of the following is not a factor affecting wind?a)Pressure Gradientb)Frictionc)Magnetismd)Coriolis Effecte)None of the above/More than one of the aboveCorrect answer is option 'C'. Can you explain this answer?
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