Calculate the pressure exerted by the water on the fish.

[Density of water = 1 000 kg m⁻³ and g = 10N/kg]

Answer the question in the diagram.

(Hint: use 'depth', not 'height')

Given that the pressure of sea water at the bottom of an ocean is 7.65 × 10⁷ N m⁻², calculate the depth of the ocean.

[Density of sea water = 1.02 × 10³ kg m⁻³ and g = 10N/kg]

Which of the following does not affect the pressure beneath the surface of a liquid?

The diagrams show, to the same scale, the vertical sections of a set of circular vessels, each containing the same depth of water.

Recall that Liquid pressure depends on the depth below the surface and also depends on the density of the fluid.

Sea water is denser than Lake water.

Fish X is above Fish Y in the Lake water.

Fish Z is at the same depth as Fish Y but Fish Z is in the Sea water.

The pressure of water exerted on the fishes is P_X, P_Y and P_Z respectively.

Which comparison is correct about the pressure of water exerted on the fishes?

Two identical containers containing liquid M and liquid N with 28 cm height and 20 cm height respectively. Both containers produce the same water spurt at the bottom.

If the density of liquid M is 2.0 g cm⁻³, find the density of liquid N.

(g = 10N/kg)

Hint: since both containers produce the same water spurt then the both containers have the SAME pressure at the bottom.