What is Pressure?
In physics, pressure is how much physical force is exerted on/against an object of a certain size.
As you may guess, the formula for this is:
Pressure=Force/Area
The units vary for pressure, as they are dependent on what your measurements are for the force and the area. A common one is the pascal, (Pa) which is one newton (That's the force) per one square meter. (That's the area.)
Examples of pressure
Why is one side of a pin more painful than the other?
Simply put, if you apply the same force to both ends, the blunt side would hurt less because it has a larger surface area. On the other hand, the same force on the sharper edge would hurt more, because it has a much smaller surface area.
Simply put, if you apply the same force to both ends, the blunt side would hurt less because it has a larger surface area. On the other hand, the same force on the sharper edge would hurt more, because it has a much smaller surface area.
Let's test your understanding so far
How much pressure is exerted by a man standing on two legs?
A) Half the pressure he exerts when standing on one leg.
B) The same pressure he exerts when standing on one leg.
C)Twice the pressure he exerts when standing on one leg.
A) Half the pressure he exerts when standing on one leg.
B) The same pressure he exerts when standing on one leg.
C)Twice the pressure he exerts when standing on one leg.
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