P11.2 Pressure in a liquid at rest Flashcards
1
Q
How does a pressure of a liquid increase?
A
Increases with depth
2
Q
What does the pressure of a liquid depend on ?
A
It’s density
3
Q
What happens if both oil and water are allowed to settle in a U-Shaped tube?
A
The oil level is higher than the water level on the other side - this is because oil is less dense than water - so a greater depth of oil is needed to create the same pressure
4
Q
How can you calculate the pressure caused by the liquid at the base of the column?
A
P = h x p x g
5
Q
What are the units of the equation for pressure in a liquid column?
A
Pascals = metres x density (Kg per m^3) x Newtons per kilogram
