Pressure in Fluids
Trending Questions
The size of an air bubble rising up In water
Increases
Decreases
Remains Constant
May increase or decrease
What is upthrust ?
What are the factors affecting pressure at a point in a liquid?
The depth of that point from the surface.
The density of the liquid.
Acceleration due to gravity.
None of the above.
Define upthrust and state its S.I. unit.
Why pressure is a scalar quantity?
When there is no external force, the shape of a liquid drop is determined by its
The blood in our body has the same pressure as atmospheric pressure.
- True
- False
What is the effect of gravity on fluid pressure?
How does the pressure exerted by a solid and a fluid differ?
Name the instrument used to determine the purity of a sample of milk.
How does surfactant reduce surface tension?
Why does a block of wood held under water rise to the surface when released?
Calculate the pressure at a depth of 100m below the surface of the sea. The density of sea water is 1024kgm3.
1024000Pa
10240Pa
None of these
102400Pa
You have a bag of cotton and an iron bar, each indicating a mass of when measured on a weighing machine. In reality:
cotton is heavier than iron
cotton and iron are equally heavy
iron is heavier than cotton
none of the above
What do you mean by the term fluid pressure ?
What is the scientific name of the 'upward force' acting on an object immersed in a liquid ?
Pressure at a point inside a liquid is
What is the other name of buoyant force ?
How does density affect capillary action?
What is a fluid ?
In what direction does the buoyant force on an object immersed in a liquid act?
What causes buoyant force (or upthrust) on a boat ?
Liquid pressure at a point_________ on the shape and size of the container
- TV
- Hydraulic Lift
- Mining
- None of the option
A body floats or sinks in a liquid due to the difference in their:
Densities
Mass
Pressures
None of these
Which of the following factors does not affect the pressure at a point inside a liquid?
Depth of the point from the surface
Acceleration due to gravity
Shape of container the liquid is kept in
Density of the liquid
Force exerted by a liquid on the walls of the container depends upon
Size of container
Height of liquid
Shape of container.
None of these
What are the factors on which the pressure does not depend?
The density of water is ρw.
- ρB=5ρw2
- ρB=3ρw2
- ρB=2ρw
- ρB=ρw2