You know that why when we use higheels we feel tired and
exhausted? and it
has to do with the pressure. Because of the cross-sectional area was small high heels why we feel
tired because if the
cross-section area of small and large embossed
force if the force is large, the pressure generated is also large. Pressure is the force acting on the object divided by the cross-sectional area of the field
where the force was working. Because the
pressure is proportional to force
and inversely proportional to the
cross-sectional area mathematically :
Pressure divided
into three :
-
Pressure on the solid
- Pressure on the
liquid
- Pressure on gas
A. Pressure on the solid
Pressure
on solids has been explained in the above example
is when we put
pressure embossed high heel why large.
Because the smaller wide fields press, the large the pressure generated
B. Pressure on the liquid
Pressure on
the liquid we feel
when we swim why our body feels
light, the pressure depends
on the density of matter, gravity and the
depth of the liquid.
Pressure
on the liquid
has 4 types:
1.
Hydrostatic major law
Hydrostatic
major law states
that "all
points lie on a
plane in a similar liquid has the same
pressure"
2.
Related vessel
In
theory proposed that the high hydrostatic
liquid in the vessel
related to the same
3.
Pascal law
“ Pascal's law
states that when there is an increase in pressure at any point in a confined
fluid, there is an equal increase at every other point in the container”.
4.
Archimedes law
"objects partially or completely submerged in the liquid will have
to limit the
amount of force equal
to the weight of fluid displaced by the object"
C. Pressure on gas
Pressure
on gas in different open space
enclosed space.
1. Gas pressure in
the open spaces
Gas pressure in the open space is often called a press air and air pressure is
measured using a device called a
barometer.
2. Gas pressure in
a confined space
Gas pressure in a closed space is measured using a manometer.
3. law boyle
"The product of pressure and volume of
gas in a confined space is a fixed / constant".
