Pressure, Gravity And Moments Flashcards
1
Q
Pressure
Unit is the pascal
Or
Newton metre squared
A
Area
2
Q
Pressure due to liquid
A
P= rho(g)(h)
Where rho is density
G is acceleration due to gravity
H is total height of water
3
Q
Three laws of pressure
A
1) pressure increases with depth
P= rho(g)(h)
2) pressure acts perpendicular to any surface put in the liquid
3) at a given depth in the liquid the value of pressure is the same in all directions
4
Q
Density
Symbol is rho
A
Mass per unit volume
Density = mass/ volume
Unit is kilo gram per unit meter
5
Q
The law of flotation
A
The weight of a floating body is equal to the weight of the fluid it displaces
6
Q
Boyles law
A
At a constant temperature the volume of a fixed mass of gas is inversely proportional to its pressure
P is DP to 1
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