31 Questions
What does Ferrel's Law demonstrate?
The effect of Coriolis force on moving matter
In which direction is the deflection for moving matter in the Southern Hemisphere?
To the left
According to Buys Ballot, where would an observer find a low-pressure area in the Southern Hemisphere?
On their right-hand side
How does Earth's rotation affect moving matter like water and air?
It deflects them from their course
What is the practical example used to illustrate Ferrel's and Buys Ballot's principles?
Analyzing the world's pressure belts and wind patterns
What law did William Ferrel develop that demonstrates the effect of Earth's rotation on moving matter?
Ferrel's Law on Coriolis Force
What is the main difference between the Dry Adiabatic Lapse Rate (DALR) and the Wet Adiabatic Lapse Rate (WALR)?
DALR applies during cooling, while WALR applies once condensation begins.
What occurs when water vapor condenses during ascent in the atmosphere?
Formation of cloud droplets
What is the primary characteristic of the föhn wind as it descends?
Warm and dry
In which geographic regions are Föhn winds prevalent?
Mountainous areas
What is the local name for the Föhn wind in the Rockies of North America?
Chinook
What can be a negative impact of Föhn winds aside from bringing warm, dry weather?
Droughts and forest fires
What causes the formation of high-pressure areas over water in summer?
Water remains cooler even in hot months
What leads to the emergence of cellular patterns instead of a continuous pressure belt?
Coriolis force
During which season do monsoon winds approach India from the southwest?
Summer
What marks the transition from cooler winter conditions during winter monsoons over India?
Rising temperatures exceeding 35°C
What is the main characteristic of Föhn winds?
They occur on the windward side of mountains
What causes the formation of low-pressure areas over land in summer?
Land surfaces heat up quickly
What is the impact of monsoon rainfall on India?
Extensive flooding and water damage
Why do planetary winds blow from high pressure cells towards low pressure cells?
Pressure gradient force
What are Föhn winds known as?
Warm, dry winds
What causes the dissipation of winds during April and May in India?
Rising temperatures exceeding 35°C
What does Ferrel's law explain?
Coriolis force deflection
In the Southern Hemisphere, what will a person experience when facing the wind according to the text?
Wind blowing towards them
At which point does geostrophic balance occur according to the text?
D - Equilibrium between Coriolis and pressure gradient forces
What plays a significant role in deviating true wind from geostrophic flow?
Friction
In which atmospheric level are geostrophic winds more common?
Upper atmosphere
What limits the diagram illustrating planetary winds according to the text?
Assuming uniform Earth surface
What do planetary winds do as a result of the Coriolis force?
Deflected left or right
What characteristic distinguishes geostrophic flow from true wind in the lower atmosphere as per the information given?
Lesser impact of friction on geostrophic flow
What gets more influential due to friction as mentioned in the text?
Low pressure systems
Explore the impact of Coriolis force and Ferrel's law on global air circulation. Learn how these concepts affect wind patterns and air pressure gradients across the world. By the end of the lesson, you will be able to understand the dynamics of global air circulation more comprehensively.
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