Form 4 - Liquid Pressure

What happens to liquid pressure as you go deeper under water?

• it increases

• it decreases

• it stays the some

• no soup for you!

What happens to atmospheric pressure as you move further away from the surface of the earth (i.e. as you go higher in the sky) ?

• it increases

• it decreases

• it stays the same

• I don't know

Where is pressure the greatest on the dam?

• D
• C
• B
• A

Tags

NGSS.MS-ETS1-1

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

• The water exerts the same pressure on the base of each vessel.

• The water exerts the greatest pressure on the base of vessel S.

• The water exerts the greatest pressure on the base of vessel P.

• The water exerts the same force on the base of each vessel.

When a diver dives deeper into the ocean, he will experience ...................... liquid pressure

• greater

• less

• no

The pressure of the water at the bottom of a pond is ___ at the surface of the pond.

• either lower or higher

• higher than

• same

• lower than

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

• Strength of the gravitational field

• Area of the liquid surface

• Density of the liquid

• Depth of the liquid

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?

• P_Z > P_Y > P_X

• P_Z = P_Y

• P_X > P_Y

• P_Z < P_X < P_Y

Calculate the pressure exerted by the water on the fish.

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

• 5 × 10⁴ Pa

• 5 × 10⁷ Pa

• 5 × 10⁶ Pa

• 5 × 10^-1 Pa

Water is stored in a large tank as shown by the the shaded rectangle in the diagram. This water tank is 3m tall and elevated at a height of 22m above the ground.

M is, a smaller storage tank, located inside the house at a height of 15m above the ground.

Calculate the pressure of the water at position M inside the house.

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

• 1.0 × 10⁵ N m⁻²

• 1.5 × 10⁵ N m⁻²

• 2.2 × 10⁵ N m⁻²

• 2.5 × 10⁵ N m⁻²