I have looked around, and I will admit that I'm a bit lost on the definitions.
Wikipedia's opening reads:
Pressure (symbol: P or p) is the ratio of force to the area over which that force is distributed.
That's a bit hard to understand at first, I'll have to say. Is vaguely saying "pressure" relative to "air resistance", or drag? Because they seem to be mixed around often.
refers to forces acting opposite to the relative motion of any substance moving in a fluid.
Sounds unrelated to pressure, so let's move on.
If pressure is the ratio of force to an area which the force is distributed, wouldn't anything be force then? Wind's force is covered over an area that it's distributed from. A punch would count too, based on how I understand pressure. I have always envisioned pressure as a uniform body of gaseous force or energy acting versatilely upon everything, such as below illustrates:
Higher pressure of the atmosphere is like a tighter "squeeze" on everything within it.
People often say pressure in exchange for force, such as when someone shakes someone's hand very hard (with a strong grip), one will say that the force is pressure. Is this correct? If so, why, and how do force and pressure coincide?
No comments:
Post a Comment