Geography Air Pressure Definition

This occurs because the warm air cools and condenses when it meets the cold air you can find out more about frontal rainfall here.

Geography air pressure definition. Layer of gases surrounding earth. Any two objects separated in space are attracted to each other by a force proportional to the product of their masses and inversely proportional to the square of the distance between them. The point where warm air meets cold air is called a front. Air pressure synonyms air pressure pronunciation air pressure translation english dictionary definition of air.

Such barometers have units of inches or centimeters of mercury. Air is a composition of various gases therefore it has specific weight. Force pressed on an object by air or atmosphere. At sea level about 1 kilogram of air presses down on each square centimeter of surface 1 kg cm2 about 15 pounds on each square inch of surface 15 lb in 2.

The air around you has weight and it presses against everything it touches. Weight of air is known as air pressure. Factors affecting air pressure 3. Areas of low pressure are known as depressions.

Air pressure definition the force exerted by air whether compressed or unconfined on any surface in contact with it. Along the front there is usually cloud and rainfall. Definition of air pressure. Air is a tangible material substance and as a result has mass any object with mass is influenced by the universal force known as gravity newton s law of universal gravitation states.

Geography and other reference data is for informational purposes only. Atmospheric pressure is commonly measured with a barometer in a barometer a column of mercury in a glass tube rises or falls as the weight of the atmosphere changes. Depressions occur when warm air meets cold air. This information should not be considered complete up to date and is not intended to be used in place of a visit consultation.

The distance above sea level. That pressure is called atmospheric pressure or air pressure it is the force exerted on a surface by the air above it as gravity pulls it to earth. Atmosphere atm noun atm unit of measurement equal to air pressure at sea level about 14 7 pounds per. Because of difference in temperature air pressure also varies immensely.

Distribution of temperature is not similar at all the places on the earth. Changes in air pressure cause the liquid level in the tube to rise or fall allowing the measurement of relative pressure.