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Does weight Affect liquid pressure?
At the Earth’s surface, the air pressure exerted on you is a result of the weight of air above you. This pressure is reduced as you climb up in altitude and the weight of air above you decreases. Under water, the pressure exerted on you increases with increasing depth. Its bottom supports the weight of the fluid in it.
Does the amount of fluid affect pressure?
A fluid exerts more pressure at greater depths. Deeper in a fluid, all of the fluid above it results in more weight pressing down. This causes greater pressure the deeper you go.
Does weight increase with pressure?
Does the pressure exerted by a column of air cause changes in a person’s weight? Actually, a person would weigh less in a denser atmosphere. The pressure exerted by a column of air is the same in all directions, so a heavy atmosphere does not have weight since it pushes just as much up as it does down.
How does weight affect pressure?
The pressure exerted on a surface by an object increases as the weight of the object increases or the surface area of contact decreases. Alternatively the pressure exerted decreases as the weight of the object decreases or the surface area of contact increases.
What happens when pressure in a fluid changes?
Changes in presure have very little effect on the volume of a liquid. If the pressure above a liquid is increased sufficiently, the liquid forms a solid. If the pressure above a liquid is decreased sufficiently, the liquid forms a gas.
What factor affects the pressure at the bottom of a container of liquid?
Two factors influence the pressure of fluids. They are the depth of the fluid and its density. A fluid exerts more pressure at greater depths. Deeper in a fluid, all of the fluid above it results in more weight pressing down.
What factors affect liquid pressure?
Pressure within a liquid depends only on the density of the liquid, the acceleration due to gravity, and the depth within the liquid. The pressure exerted by such a static liquid increases linearly with increasing depth.
What happens to the pressure when you change the volume of the container?
Pressure is also affected by the volume of the container. If the volume of a container is decreased, the gas molecules have less space in which to move around. As a result, they will strike the walls of the container more often and the pressure increases.
How does the pressure at the bottom of a container change?
Changing the volume of the container in your example does not affect the pressure at the bottom of the container, but any change in shape that changes the heightof the fluid willchange the pressure at the bottom because the pressure is proportional to the height of fluid above the bottom (if the fluid is incompressible like water). Share Cite
Which is the pressure due to the weight of a fluid?
P = hρg. This value is the pressure due to the weight of a fluid. The equation has general validity beyond the special conditions under which it is derived here. Even if the container were not there, the surrounding fluid would still exert this pressure, keeping the fluid static.
How does the bottom support the weight of the fluid?
The vertical sides cannot exert an upward force on the fluid (since it cannot withstand a shearing force), and so the bottom must support it all. Its bottom supports the weight of the fluid in it. Let us calculate the pressure exerted on the bottom by the weight of the fluid.
How does the bottom of a container support its weight?
The bottom of this container supports the entire weight of the fluid in it. The vertical sides cannot exert an upward force on the fluid (since it cannot withstand a shearing force), and so the bottom must support it all. Its bottom supports the weight of the fluid in it.