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Atmospheric Pressure and Cyclones

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Questions and Answers

What is atmospheric pressure?

The force per unit of area exerted on the Earth's surface by the weight of the air above the surface.

Atmospheric pressure is greater at higher altitudes.

False

What is the standard atmospheric pressure defined as?

1013.27 hPa

What device is used to measure pressure?

Barometer Signup and view all the answers

What is a cyclone?

A low-pressure system in the atmosphere where air pressure has dropped below the standard atmospheric pressure Signup and view all the answers

Winds in a cyclone rotate inward in a counterclockwise direction in the northern hemisphere.

True Signup and view all the answers

What are tropical cyclones?

Tropical cyclones are a type of cyclone that develop over tropical oceans. Signup and view all the answers

Study Notes

Atmospheric Pressure

Atmospheric pressure is the force per unit area exerted on the Earth's surface by the weight of the air above the surface.
Air pressure is greater at the sea level and decreases with increasing altitude.
Standard atmosphere is defined as 1013.27 hPa.
Meteorological reports typically state atmospheric pressure in millibars.
Pressure measurement device is called barometer.

Low Pressure System - Cyclone

A cyclone is a low-pressure system of the atmosphere in which air pressure has dropped below the standard atmospheric pressure.
Winds rotate inward in a counterclockwise direction in the northern hemisphere and clockwise direction in the southern hemisphere.
Tropical cyclones, which develop over tropical oceans, are commonly characterized by intense low-pressure system, high wind speeds, and storm surges.

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Description

Explore the concepts of atmospheric pressure and low-pressure systems like cyclones in this quiz. Learn how air pressure varies with altitude, the definition of standard atmosphere, and the characteristics of cyclones. Test your knowledge on barometers and the dynamics of wind patterns in different hemispheres.