Pressure in Liquid

Liquid pressure is because of the forces between the liquid particles and the _________ of the container.

• Volume

• Mass

• Surface

• Density

When divers return to the surface of water quickly, the pressure is ________.

• Increased

• Decreased

• Not changing

The pressure exerted by a liquid

• increases with depth.

• decreases with depth.

• is constant

• first increases and then decreases.

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.

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 is pressure the greatest on the dam?

• D
• C
• B
• A

As you climb up a mountain what happens to the air pressure?

• decreases
• increases
• stays the same

What happens to the amount of oxygen molecules as altitude increases?

• fewer molecules
• more molecules
• same amount of molecules
• nothing happens to the molecules

Air pressure is greater _______.

• at the top of the mountain
• at the bottom of the mountain
• at the center of the mountain

• A

• B

• C

• D