The difference between liquid pressure and air pressure
The difference between liquid pressure and air pressure. Karrar jaffar Y9B In physics, a pressure describes how a force is spread over an area, and it has more than a type for it. In this blog, we will compare between liquid pressure and air pressure, and let's start with the air pressure. Air pressure Definition Air pressure, or atmospheric pressure, is the exertion of the force on a surface by the air as gravity pulls it to earth, it is caused by the weight of air molecules above, and this huge number of molecules pressing down the earth. Measurement Air pressure is measure with an instrument called barometer, the mercury in the glass tube rises and falls when the weight of the atmosphere, and this pressure can be in inches or millibars. Examples There are multiple examples of are pressure, some of them is: Rubber sucker, drinking straw, syringe, dropper, aircraft fly and toy balloon. -----------------------------------------------------------------------------------------------...