What exactly is pressure?

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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

14 Answers

Anonymous 0 Comments

You actually got it in your response: pressure is basically how hard something is pressing against something else. It’s the “press” in pressure.

Air pressure in your tires is how hard the air is pushing against your tire walls, water pressure in a faucet is how hard the water is pressing against the air as it exits, blood pressure measures how hard your blood is pushing against your blood vessel walls, etc.

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