Atmospheric Pressure Definition
Atmospheric pressure is the force exerted by the weight of air molecules in Earth’s atmosphere. It affects weather patterns, human health, and even everyday objects like straws and syringes.
How Atmospheric Pressure Works
Air has mass and weight due to gravity. This creates pressure that decreases with altitude. Instruments like barometers measure it in units such as Pascals or inches of mercury.
Key Factors Influencing Air Pressure
Temperature, altitude, and weather systems impact pressure readings. Low pressure often brings storms, while high pressure indicates clear skies.
Common Questions Answered
What is a simple atmospheric pressure definition?
It’s the weight of air pressing down on Earth’s surface.
How does it affect humans?
Changes can cause ear discomfort or influence health conditions.
Why measure atmospheric pressure?
It’s vital for forecasting weather and aviation safety.
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