495681
Description
Mind Map by glhoward13, updated more than 1 year ago
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Created by glhoward13
almost 11 years ago
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Pressure/Density
- Density
- is the amount of material in a particular volume which allows us
to compare the different shapes of materials in Kg/m3 or g/cm3.
- Density=mass/volume
- E.G: Aluminium;
mass=110g,volume=40cm3,density=110/40=2.750
- Mass(grams)
- Volume(cm3)=LxWxH
- Volume of a cylinder=Pi x r2 x h
- Used when finding the volume of a liquid
- Used when finding the volume of a liquid
- Volume of a cube=l x l x l
- Use Eureka can to find the
volume of a uneven solid
- Volume of a cylinder=Pi x r2 x h
- E.G: Aluminium;
mass=110g,volume=40cm3,density=110/40=2.750
- is the amount of material in a particular volume which allows us
to compare the different shapes of materials in Kg/m3 or g/cm3.
- Pressure
- is the effect of a force spread out over an area.
- Pressure= force/area
- Pressure (N/m2) or (Pascal)
- Force (Newtons)
- Area (m2)
- Pressure (N/m2) or (Pascal)
- Pressure under water.
- Pressure increases with depth (height) of the water, the
type of water (density) and the gravitational force.
- Pressure= Height x Density x Gravitational force
- Pressure (Pa)
- Height (m)
- G ( 10 on earth N/Kg)
- Density (Kg/m2)
- Pressure (Pa)
- Pressure= Height x Density x Gravitational force
- Pressure increases with depth (height) of the water, the
type of water (density) and the gravitational force.
- Pressure acts in all directions.
- Experiment to compare pressure in gas and liquid
- 2 syringes and a tube
joining them together with
air/water one side and
nothing the other.
- Gas: As the force is
applied to the 1st syringe it
creates pressure which
pushes the air throughout
the tube and into the 2nd
syringe.
- Liquid: The liquid acts the same as the gas but moved further
because space between molecules cannot be reduced.
- Liquid: The liquid acts the same as the gas but moved further
because space between molecules cannot be reduced.
- 2 syringes and a tube
joining them together with
air/water one side and
nothing the other.
- is the effect of a force spread out over an area.
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