ICP Ch 13 Review

If the air inside a balloon exerts a force of 1 N on an area of 0.5 m², what is the pressure inside the balloon?

• 0.5 N/m²

• 1.5 N/m²

• 1 N/m²

• 2 N/m²

Which of the following is NOT possible?

• compressing 10 liters of oxygen gas into a 1 liter volume

• compressing 2 liters of water into a liter volume

• filling a using helium gas from a pressurized tank

• allowing 5 liters of compressed air to expand to a volume of 100 liters

The pressure of air at sea level is approximately

• 0 kPa.

• 10 kPa.

• 101 kPa.

• 1000 kPa.

In the picture, Piston 1 exerts a pressure of 10 Pa on the fluid in the hydraulic lift. What is the fluid pressure on Piston 2?

• 1 Pa

• 5 Pa

• 10 Pa

• 90 Pa

Which of the following statements is true about an airplane wing during flight?

• Air above the wing travels faster than air below the wing.

• Air below the wing travels faster than air above the wing.

• The wing exerts pressure equally in all directions.

• The lift acting on the wing reduces the weight of the wing.

The strength of the buoyant force acting on an object in a fluid depends on the object's

• mass.

• surface area.

• volume.

• weight.

A ball is floating partially submerged in a liquid. The buoyant force acting on the ball equals the

• volume of the ball below the surface.

• volume above the surface.

• mass of the ball.

• weight of the ball.

Two identical corks float in separate beakers. One beaker contains water. The other contains very salty water. Which of the following statements is true?

• The corks both float at the same level in the liquid.

• The cork in the very salty water floats at a lower level than the other cork.

• The corks will eventually sink.

• Both corks are subject to the same buoyant force.

A pascal, the SI unit of pressure, is equal to 1 newton per ________________.

• m

• m²

• kg

• L

The pressure exerted by a fluid at any given depth is exerted _____________ in all directions.

• differently

• equally

• unevenly

• randomly