Why Do Tornadoes Spin ? : āĻŸā§°ā§āϪ⧇āĻĄā§‹ āĻ•āĻŋāϝāĻŧ āĻ˜ā§‚ā§°ā§‡ ?









Why Do Tornadoes Spin ? : āĻŸā§°ā§āϪ⧇āĻĄā§‹ āĻ•āĻŋāϝāĻŧ āĻ˜ā§‚ā§°ā§‡ ?


1. Tornadoes Form During Powerful Thunderstorms

Tornadoes usually form during very powerful thunderstorms. These storms create strong winds and unstable air conditions.


āĻŸā§°ā§āϪ⧇āĻĄā§‹ āϏāĻžāϧāĻžā§°āĻŖāϤ⧇ āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ **āĻŦāĻœā§ā§°āĻāĻĄāĻŧ (Thunderstorm)**ā§° āϏāĻŽāϝāĻŧāϤ āϏ⧃āĻˇā§āϟāĻŋ āĻšāϝāĻŧāĨ¤ āĻāχ āĻāĻĄāĻŧāĻŦ⧋⧰⧇ āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ āĻŦāϤāĻžāĻš āφ⧰⧁ āĻ…āĻ¸ā§āĻĨāĻŋā§° āĻŦāĻžāϝāĻŧ⧁⧰ āĻĒā§°āĻŋāĻ¸ā§āĻĨāĻŋāϤāĻŋ āϏ⧃āĻˇā§āϟāĻŋ āϕ⧰⧇āĨ¤



2. Warm Air Rises from the Ground

Warm air near the ground rises quickly upward because warm air is lighter.


āĻŽāĻžāϟāĻŋā§° āĻ“āϚ⧰⧰ āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁ āĻĻā§ā§°ā§āϤāĻ—āϤāĻŋāϤ⧇ āĻ“āĻĒā§°āϞ⧈ āωāϠ⧇, āĻ•āĻžā§°āĻŖ āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁ āĻšāĻžāϞāϧ⧀āϝāĻŧāĻž āφ⧰⧁ āϏāĻšāĻœā§‡ āĻ“āĻĒā§°āϞ⧈ āωāĻ āĻŋāĻŦ āĻĒāĻžā§°ā§‡āĨ¤


3. Cool Air Moves In

Cooler air moves in to replace the rising warm air. This movement creates strong air currents.


āωāĻ āĻŋ āĻ¯ā§‹ā§ąāĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁⧰ āĻ āĻžāχ āĻĒā§‚ā§°āĻŖ āϕ⧰āĻŋāĻŦāϞ⧈ āĻ āĻžāĻŖā§āĻĄāĻž āĻŦāĻžāϝāĻŧ⧁ āϏ⧋āĻŽāĻžāχ āφāĻšā§‡āĨ¤ āχāϝāĻŧāĻžā§° āĻĢāϞāϤ āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ āĻŦāĻžāϝāĻŧ⧁⧰ āϚāϞāĻžāϚāϞ āϏ⧃āĻˇā§āϟāĻŋ āĻšāϝāĻŧāĨ¤


4. Wind Shear Causes Spinning

Winds at different heights blow in different directions. This effect is called wind shear, and it creates a horizontal spinning tube of air.


āĻ­āĻŋāĻ¨ā§āύ āωāĻšā§āϚāϤāĻžāϤ āĻŦāϤāĻžāĻš āĻ­āĻŋāĻ¨ā§āύ āĻĻāĻŋāĻļ⧇ āĻŦāϝāĻŧāĨ¤ āĻāχ āϘāϟāύāĻžāĻ• Wind Shear (āĻŦāϤāĻžāĻšā§° āĻĻāĻŋāĻļā§° āĻĒāĻžā§°ā§āĻĨāĻ•ā§āϝ) āĻŦ⧁āϞāĻŋ āĻ•ā§‹ā§ąāĻž āĻšāϝāĻŧ, āϝāĻžā§° āĻĢāϞāϤ āĻŦāĻžāϝāĻŧ⧁⧰ āĻāϟāĻž āĻ…āύ⧁āĻ­ā§‚āĻŽāĻŋāĻ• āĻ˜ā§‚ā§°āĻŖāĻŋ āϏ⧃āĻˇā§āϟāĻŋ āĻšāϝāĻŧāĨ¤


5. Rising Air Tilts the Spin

The rising warm air tilts this spinning air tube vertically, forming a rotating funnel called a tornado.


āĻ“āĻĒā§°āϞ⧈ āωāĻ āĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁āϝāĻŧ⧇ āĻāχ āĻ˜ā§‚ā§°āĻŖāĻŋ āĻĨāĻ•āĻž āĻŦāĻžāϝāĻŧ⧁⧰ āύāϞāĻžāĻŸā§‹ āωāϞāĻŽā§āĻŦ āϕ⧰āĻŋ āĻĻāĻŋāϝāĻŧ⧇ āφ⧰⧁ āĻāϟāĻž āĻ˜ā§‚ā§°āĻŖā§€āϝāĻŧāĻž āĻĢāĻžāύ⧇āϞ āϏ⧃āĻˇā§āϟāĻŋ āϕ⧰⧇, āϝāĻžāĻ• āĻŸā§°ā§āϪ⧇āĻĄā§‹ āĻŦ⧁āϞāĻŋ āĻ•ā§‹ā§ąāĻž āĻšāϝāĻŧāĨ¤


Key Point

Tornadoes spin because rising warm air and wind shear create strong rotation.


āĻŸā§°ā§āϪ⧇āĻĄā§‹ āĻ˜ā§‚ā§°ā§‡ āĻ•āĻžā§°āĻŖ āĻ“āĻĒā§°āϞ⧈ āωāĻ āĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁ āφ⧰⧁ āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§° āĻŽāĻŋāϞāĻŋ āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ āĻ˜ā§‚ā§°āĻŖāĻŋ āϏ⧃āĻˇā§āϟāĻŋ āϕ⧰⧇āĨ¤


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MCQ


1. Tornadoes usually form during which type of storm ? : āĻŸā§°ā§āϪ⧇āĻĄā§‹ āϏāĻžāϧāĻžā§°āĻŖāϤ⧇ āϕ⧋āύ āϧ⧰āĻŖā§° āĻāĻĄāĻŧāϤ āϏ⧃āĻˇā§āϟāĻŋ āĻšāϝāĻŧ ?


A) Snowstorm | āϤ⧁āώāĻžā§° āĻāĻĄāĻŧ B) Thunderstorm | āĻŦāĻœā§ā§°āĻāĻĄāĻŧ C) Sandstorm | āĻŦāĻžāϞāĻŋā§° āĻāĻĄāĻŧ D) Rainstorm | āĻŦā§°āώ⧁āĻŖā§° āĻāĻĄāĻŧ


Ans: B) Thunderstorm | āĻŦāĻœā§ā§°āĻāĻĄāĻŧ
Explanation: Tornadoes usually develop during strong thunderstorms where unstable air and powerful winds exist.
āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻŸā§°ā§āϪ⧇āĻĄā§‹ āϏāĻžāϧāĻžā§°āĻŖāϤ⧇ āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ āĻŦāĻœā§ā§°āĻāĻĄāĻŧā§° āϏāĻŽāϝāĻŧāϤ āϏ⧃āĻˇā§āϟāĻŋ āĻšāϝāĻŧ, āϝ’āϤ āĻŦāĻžāϝāĻŧ⧁ āĻ…āĻ¸ā§āĻĨāĻŋā§° āφ⧰⧁ āĻŦāϤāĻžāĻš āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ āĻĨāĻžāϕ⧇āĨ¤


2. What type of air rises quickly from the ground ? : āĻŽāĻžāϟāĻŋā§° āĻĒā§°āĻž āϕ⧋āύ āϧ⧰āĻŖā§° āĻŦāĻžāϝāĻŧ⧁ āĻĻā§ā§°ā§āϤāĻ—āϤāĻŋāϤ⧇ āĻ“āĻĒā§°āϞ⧈ āωāϠ⧇ ?

A) Cold air | āĻ āĻžāĻŖā§āĻĄāĻž āĻŦāĻžāϝāĻŧ⧁ B) Warm air | āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁ C) Dry air | āĻļ⧁āĻ•āĻžāύ āĻŦāĻžāϝāĻŧ⧁ D) Dusty air | āϧ⧂āϞāĻŋāĻŽāϝāĻŧ āĻŦāĻžāϝāĻŧ⧁


Ans: B) Warm air | āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁
Explanation: Warm air is lighter than cold air, so it rises quickly upward. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁ āĻ āĻžāĻŖā§āĻĄāĻž āĻŦāĻžāϝāĻŧ⧁āϤāĻ•ā§ˆ āĻšāĻžāϞāϧ⧀āϝāĻŧāĻž, āϏ⧇āϝāĻŧ⧇ āχ āĻĻā§ā§°ā§āϤāĻ—āϤāĻŋāϤ⧇ āĻ“āĻĒā§°āϞ⧈ āωāϠ⧇āĨ¤


3. What replaces the rising warm air ? : āωāĻ āĻŋ āĻ¯ā§‹ā§ąāĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁⧰ āĻ āĻžāχ āϕ⧋āύ⧇ āϞāϝāĻŧ ?

A) Dust | āϧ⧂āϞāĻŋ B) Cooler air | āĻ āĻžāĻŖā§āĻĄāĻž āĻŦāĻžāϝāĻŧ⧁ C) Smoke | āϧ⧋āĻā§ąāĻž D) Steam | āĻ­āĻžāĻĒ


Ans: B) Cooler air | āĻ āĻžāĻŖā§āĻĄāĻž āĻŦāĻžāϝāĻŧ⧁
Explanation: Cooler air moves in to replace the rising warm air, creating strong air movement.
āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āωāĻ āĻŋ āĻ¯ā§‹ā§ąāĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁⧰ āĻ āĻžāχ āĻĒā§‚ā§°āĻŖ āϕ⧰āĻŋāĻŦāϞ⧈ āĻ āĻžāĻŖā§āĻĄāĻž āĻŦāĻžāϝāĻŧ⧁ āϏ⧋āĻŽāĻžāχ āφāĻšā§‡ āφ⧰⧁ āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ āĻŦāĻžāϝāĻŧ⧁ āϚāϞāĻžāϚāϞ āϏ⧃āĻˇā§āϟāĻŋ āϕ⧰⧇āĨ¤


4. What is the difference in wind direction at different heights called ? : āĻ­āĻŋāĻ¨ā§āύ āωāĻšā§āϚāϤāĻžāϤ āĻŦāϤāĻžāĻšā§° āĻĻāĻŋāĻļā§° āĻĒāĻžā§°ā§āĻĨāĻ•ā§āϝāĻ• āĻ•āĻŋ āĻ•ā§‹ā§ąāĻž āĻšāϝāĻŧ ?

A) Wind storm | āĻŦāϤāĻžāĻšā§° āĻāĻĄāĻŧ B) Wind shear | āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§° C) Air pressure | āĻŦāĻžāϝāĻŧ⧁āϚāĻžāĻĒ D) Air current | āĻŦāĻžāϝāĻŧ⧁ āϧāĻžā§°āĻž


Ans: B) Wind shear | āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§°
Explanation: Wind shear happens when winds blow in different directions or speeds at different heights.
āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§° āϤ⧇āϤāĻŋāϝāĻŧāĻž āĻšāϝāĻŧ āϝ⧇āϤāĻŋāϝāĻŧāĻž āĻ­āĻŋāĻ¨ā§āύ āωāĻšā§āϚāϤāĻžāϤ āĻŦāϤāĻžāĻš āĻ­āĻŋāĻ¨ā§āύ āĻĻāĻŋāĻļ⧇ āĻŦāĻž āĻ—āϤāĻŋ⧰⧇ āĻŦāϝāĻŧāĨ¤


5. Wind shear creates what type of spinning air ? : āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§°ā§‡ āϕ⧇āύ⧇āϧ⧰āĻŖā§° āĻ˜ā§‚ā§°āĻŖā§€āϝāĻŧāĻž āĻŦāĻžāϝāĻŧ⧁ āϏ⧃āĻˇā§āϟāĻŋ āϕ⧰⧇ ?

A) Vertical spinning | āωāϞāĻŽā§āĻŦ āĻ˜ā§‚ā§°āĻŖāĻŋ B) Horizontal spinning | āĻ…āύ⧁āĻ­ā§‚āĻŽāĻŋāĻ• āĻ˜ā§‚ā§°āĻŖāĻŋ C) Circular storm | āĻ—ā§‹āϞāĻžāĻ•āĻžāϰ āĻāĻĄāĻŧ D) Dust storm | āϧ⧂āϞāĻŋ āĻāĻĄāĻŧ


Ans: B) Horizontal spinning | āĻ…āύ⧁āĻ­ā§‚āĻŽāĻŋāĻ• āĻ˜ā§‚ā§°āĻŖāĻŋ
Explanation: Wind shear forms a horizontal rotating tube of air in the atmosphere. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§°ā§‡ āĻŦāĻžāϝāĻŧ⧁āĻŽāĻŖā§āĻĄāϞāϤ āĻ…āύ⧁āĻ­ā§‚āĻŽāĻŋāĻ• āĻ˜ā§‚ā§°āĻŖā§€āϝāĻŧāĻž āĻŦāĻžāϝāĻŧ⧁⧰ āύāϞāĻž āϏ⧃āĻˇā§āϟāĻŋ āϕ⧰⧇āĨ¤


6. What changes the horizontal spin into a vertical tornado ? : āĻ…āύ⧁āĻ­ā§‚āĻŽāĻŋāĻ• āĻ˜ā§‚ā§°āĻŖāĻŋāĻ• āωāϞāĻŽā§āĻŦ āĻŸā§°ā§āϪ⧇āĻĄā§‹āϤ āϕ⧋āύ⧇ āĻĒā§°āĻŋāĻŖāϤ āϕ⧰⧇ ?

A) Rain | āĻŦā§°āώ⧁āĻŖ B) Rising warm air | āĻ“āĻĒā§°āϞ⧈ āωāĻ āĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁ C) Clouds | āĻĄāĻžā§ąā§° D) Lightning | āĻŦāĻœā§ā§°āĻĒāĻžāϤ


Ans: B) Rising warm air | āĻ“āĻĒā§°āϞ⧈ āωāĻ āĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁
Explanation: Rising warm air tilts the spinning air vertically and forms a tornado funnel. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻ“āĻĒā§°āϞ⧈ āωāĻ āĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁āϝāĻŧ⧇ āĻ˜ā§‚ā§°āĻŖāĻŋ āĻĨāĻ•āĻž āĻŦāĻžāϝāĻŧ⧁āĻ• āωāϞāĻŽā§āĻŦ āϕ⧰āĻŋ āĻŸā§°ā§āϪ⧇āĻĄā§‹ āϏ⧃āĻˇā§āϟāĻŋ āϕ⧰⧇āĨ¤


7. What shape does a tornado usually have ? : āĻŸā§°ā§āϪ⧇āĻĄā§‹ā§° āϏāĻžāϧāĻžā§°āĻŖāϤ⧇ āĻ•āĻŋ āφāĻ•ā§ƒāϤāĻŋ āĻĨāĻžāϕ⧇ ?

A) Square | āĻŦā§°ā§āĻ—āĻžāĻ•ā§ƒāϤāĻŋ B) Funnel | āĻĢāĻžāύ⧇āϞ āφāĻ•ā§ƒāϤāĻŋ C) Triangle | āĻ¤ā§ā§°āĻŋāϭ⧁āϜ D) Oval | āĻĄāĻŋāĻŽā§āĻŦāĻžāĻ•ā§ƒāϤāĻŋ


Ans: B) Funnel | āĻĢāĻžāύ⧇āϞ āφāĻ•ā§ƒāϤāĻŋ
Explanation: Tornadoes usually appear as a rotating funnel-shaped cloud. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻŸā§°ā§āϪ⧇āĻĄā§‹ āϏāĻžāϧāĻžā§°āĻŖāϤ⧇ āĻ˜ā§‚ā§°āĻŖā§€āϝāĻŧāĻž āĻĢāĻžāύ⧇āϞ āφāĻ•ā§ƒāϤāĻŋā§° āĻĄāĻžā§ąā§°ā§° āĻĻ⧰⧇ āĻĻ⧇āĻ–āĻž āϝāĻžāϝāĻŧāĨ¤


8. Tornado rotation is mainly caused by which two factors ? : āĻŸā§°ā§āϪ⧇āĻĄā§‹ā§° āĻ˜ā§‚ā§°āĻŖāĻŋ āĻŽā§‚āϞāϤ āϕ⧋āύ āĻĻ⧁āϟāĻž āĻ•āĻžā§°āĻŖāϤ āĻšāϝāĻŧ ?

A) Rain & clouds | āĻŦā§°āώ⧁āĻŖ āφ⧰⧁ āĻĄāĻžā§ąā§° B) Rising air & wind shear | āωāĻ āĻž āĻŦāĻžāϝāĻŧ⧁ āφ⧰⧁ āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§° C) Snow & wind | āϤ⧁āώāĻžā§° āφ⧰⧁ āĻŦāϤāĻžāĻš D) Sunlight & heat | āĻ¸ā§‚ā§°ā§āϝ⧰ āĻĒā§‹āĻšā§° āφ⧰⧁ āϤāĻžāĻĒ


Ans: B) Rising air & wind shear | āωāĻ āĻž āĻŦāĻžāϝāĻŧ⧁ āφ⧰⧁ āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§°
Explanation: Rising warm air and wind shear together create strong rotation needed for a tornado. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āωāĻ āĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁ āφ⧰⧁ āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§°ā§‡ āĻŽāĻŋāϞāĻŋ āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ āĻ˜ā§‚ā§°āĻŖāĻŋ āϏ⧃āĻˇā§āϟāĻŋ āϕ⧰⧇āĨ¤


9. Tornadoes are mainly studied in which science field ? : āĻŸā§°ā§āϪ⧇āĻĄā§‹ āĻŽā§‚āϞāϤ āϕ⧋āύ āĻŦāĻŋāĻœā§āĻžāĻžāύāϤ āĻ…āĻ§ā§āϝāϝāĻŧāύ āϕ⧰āĻž āĻšāϝāĻŧ ?

A) Biology | āĻœā§€ā§ąāĻŦāĻŋāĻœā§āĻžāĻžāύ B) Meteorology | āφāĻŦāĻšāĻžāĻ“āϝāĻŧāĻž āĻŦāĻŋāĻœā§āĻžāĻžāύ C) Chemistry | ā§°āϏāĻžāϝāĻŧāύ D) Botany | āωāĻĻā§āĻ­āĻŋāĻĻāĻŦāĻŋāĻœā§āĻžāĻžāύ


Ans: B) Meteorology | āφāĻŦāĻšāĻžāĻ“āϝāĻŧāĻž āĻŦāĻŋāĻœā§āĻžāĻžāύ
Explanation: Meteorology is the study of weather events like storms and tornadoes. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āφāĻŦāĻšāĻžāĻ“āϝāĻŧāĻž āĻŦāĻŋāĻœā§āĻžāĻžāύ⧇ āĻāĻĄāĻŧ āφ⧰⧁ āĻŸā§°ā§āϪ⧇āĻĄā§‹ā§° āĻĻ⧰⧇ āĻŦāϤ⧰⧰ āϘāϟāύāĻžāĻŦā§‹ā§° āĻ…āĻ§ā§āϝāϝāĻŧāύ āϕ⧰⧇āĨ¤


10. What is the key reason tornadoes spin ? : āĻŸā§°ā§āϪ⧇āĻĄā§‹ āĻ˜ā§‚ā§°āĻŖāĻŋā§° āĻŽā§‚āϞ āĻ•āĻžā§°āĻŖ āĻ•āĻŋ ?

A) Heavy rain | āĻ…āϧāĻŋāĻ• āĻŦā§°āώ⧁āĻŖ B) Rising warm air & wind shear | āωāĻ āĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁ āφ⧰⧁ āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§° C) Lightning | āĻŦāĻœā§ā§°āĻĒāĻžāϤ D) Cold clouds | āĻ āĻžāĻŖā§āĻĄāĻž āĻĄāĻžā§ąā§°


Ans: B) Rising warm air & wind shear | āωāĻ āĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁ āφ⧰⧁ āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§°
Explanation: The combination of rising warm air and wind shear produces the spinning motion of tornadoes.
āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āωāĻ āĻž āĻ—ā§°āĻŽ āĻŦāĻžāϝāĻŧ⧁ āφ⧰⧁ āωāχāĻŖā§āĻĄ āĻļāĻŋāϝāĻŧāĻžā§°ā§° āĻŽāĻŋāϞāύ⧰ āĻĢāϞāϤ⧇āχ āĻŸā§°ā§āϪ⧇āĻĄā§‹ā§° āĻ˜ā§‚ā§°āĻŖāĻŋ āϏ⧃āĻˇā§āϟāĻŋ āĻšāϝāĻŧāĨ¤