2006-09-21 03:58:44 · 6 answers · asked by Cheese G 1 in Science & Mathematics ➔ Physics
Pressure is force/area. To illustrate, think of standing in dirt with high heels. If you put all your weight on the front of your feet, you won't sink. If you put all your weight on your heels, you will sink.
Thus for the same weight, you have different pressure depending on the area of contact.
2006-09-21 05:23:28 · answer #1 · answered by daedgewood 4 · 1⤊ 0⤋
Pressure is the Force per Unit Area
In S.I. Units: Newton/Square Metre = N/m^2
This unit is also referred to as a PASCAL (pa)
Atmospheric pressures are usually referred to as HECTOBAR (hbar)
1 hbar = 10^7 N/m^2
1 bar = 10^5 N/m^2 Approximately One Atmosphere
Pressure in a fluid is given by:
'Rho' gh where Rho is the Greek letter symbol for density
g = 9.81m^2
h is the depth, (or height) of a liquid from a datum
2006-09-21 04:19:17 · answer #2 · answered by CurlyQ 4 · 0⤊ 0⤋
Hi. Physical pressure is the force put on an object from all directions caused by immersion in a fluid or gas, or by a container holding a fluid or gas. Answer 1 is correct, the force is measured by unit area. To experiment, squeeze a partially inflated balloon and watch what happens.
2006-09-21 04:01:58 · answer #3 · answered by Cirric 7 · 0⤊ 0⤋
Pressure is a force distributed over an area normal to a surface.
Example: pounds per square inch.
2006-09-21 04:00:44 · answer #4 · answered by Professor 3 · 0⤊ 0⤋
pressure can be a positive or negative force applied to any object.
2006-09-21 04:09:35 · answer #5 · answered by Heather 5 · 0⤊ 0⤋
Well I work all day...collect the kids from school...cook their tea...wash there cloths...do the house work while my misses sits on her ****...that's bloody pressure....
2006-09-21 04:02:05 · answer #6 · answered by Anonymous · 0⤊ 1⤋