2. The pressure in a liquid is due to
a) Density of the liquid, p.
b) Depth of the liquid, h, below the surface liquid.
c) Acceleration of the gravity, g.
3. The pressure on a liquid is proportional to the density of the liquid, p and the depth, h, at which the liquid is measured.
4. The pressure in a liquid at rest (static liquid) is independent of the shape (area and slope) of the container.
5. The applications of pressure in liquids are:
i) Dams
ii) Domestic Water supplies
i) Dams
Dams are very much thicker at the bottom than at the top, since the pressure at the bottom is the greatest.
Large dams are built for the hydroelectric generation of electricity.
The high pressure on the deep-water side of the dam causes water to flow through these holes at great speed turning the turbines in the holes and generate the electricity.
ii) Domestic Water Supplies
The main water comes from a reservoir but in order to maintain a constant high pressure to the consumer, it is pumped to the top of a water tower located on high ground.
The main pressure is determined by the height, h.
Hope this helps!
