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Rev. Notes > IGCSE > Pressure
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Pressure Atmospheric pressure Pressure in case of liquid
Mercury barometer Manometer

Pressure in case of liquid

If you dive below the water the height of water above you also puts pressure on you.

At a depth of 10m of water the pressure has increased by 100 K Pa (1bar) and for each further 10m of depth the pressure increases by another 100 k Pa.

The increase in pressure below the surface of liquid depends on

  1. The depth below the surface (h)
  2. The density of the liquid (d)
  3. The gravitational field strength ( g = 10 m / s2).

It does not depend on anything else.

The pressure below the surface of a fluid is given as:

Pressure = (Density) X (Height) X (Gravitiational field strength)

P=d X g X h = dgh

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View Comments on this Chapter - Total Comments (6)
Amaan Said :
Insufficient information
  26/11/15 01:23 PM
Uwase Sandrine Said :
A picture could help with again more details
  23/01/15 07:58 AM
Uwase Sandrine Said :
it would be good if it was detailed with a few examples and more explanation but thankx anyway saved my life
  23/01/15 07:49 AM
abdirahman Said :
i really need more details on pressure!!
  03/05/12 08:17 AM
Zoyaa Said :
Yeah good explanation but i need more in detail. Anyways Thank You :)
------------------------------------------------------------------------------------- Admin Replied:

Thanks Zoyaa, for your comments. We will try to add more details very soon.

  09/04/12 06:17 PM
Zeenat Said :
Good understanding of pressure, but it will be good if few more examples are there.
------------------------------------------------------------------------------------- Admin Replied:

Thank you for your comment. We are trying our best to make it possible.

  20/12/11 09:42 AM


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