Fluid pressure

When a person swims under water, water pressure is felt acting on the person's eardrums. The pressure is due to

• Less water above the person

• Large surface area of the swimmer

• Weight of the water above the person

• Volume of water

What is the unit of measurement for pressure?

• pascal
• grams
• milliters
• meters

When you increase your depth under water, the water pressure on your body

• increases

• decreases

• stays the same

What decreases as you go up in the atmosphere?

• Altitude
• Atmosphere
• Meteors
• Air Pressure

How do you Calculate Pressure

• Force(N)/Area(m²)

• Force(kg)/Area(mi²)

• Area(m²)/Force(N)

Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?

• The design of this structure is stronger.

• Water pressure increases with depth.

• The cost of construction is lower.

• Water pressure acts uniformly in all directions.

Where would you find the largest pressure?

• At the bottom of the ocean
• At the top of Mt Everest
• Close to ground on the Scotch oval
• In a rockpool on the Great Barrier Reef

Which of the following is not the property of ideal fluid?

• It is incompressible

• Its flow is rotational

• It is non viscous

• Its flow is steady

The SI unit of pressure is

• Nm

• Nm²

• N/m

• N/m²

Formula for pressure due to liquid coloumn