I can’t seem to wrap my head around the term pressure.
Vehicle tyres use air pressure, toilets faucets etc use pressure (presumably water pressure),
pressing onto something applies pressure, our blood has pressure, temperature is also affected by “pressure”.
I know there are various types of pressure, and I can’t think of any more examples at the moment, but my point is “pressure” sounds like a very arbitrary or vague umbrella term to me.
Help me make sense of it?
In: 3
Fluid (liquid and gas) particles are always in constant and random motion. When they bounce off of each other and hit the walls of their container, they exert a certain amount of force on it. The average amount of force exerted by these particles per unit area is defined as pressure. When something’s temperature increases, it gains kinetic energy, also known as ‘movement’ energy. When something’s kinetic energy increases, it moves faster. As you can guess, when particles begin to move faster, they bounce off of each other more often and collide with their surroundings at faster speeds, exerting a higher force. Thus, pressure increases with temperature.
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