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
Gas molecules oppose each-other like magnets with the poles facing together. The gravity of the earth pulls downward on gas molecules which results in atmospheric pressure. A balance is found between the force of gravity and the opposition between the molecules.
If you force these molecules together even more, there is pressure that’s even greater than atmospheric pressure, like inside of tires. This causes the compressed gas to exert outward force from the inside of the tire, which helps it retain it’s shape while holding the weight of a car.
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