Chapter 13 Forces in Fluids

Atmospheric pressure is caused by

• the weight of the atmosphere above a particular location

• clouds

• air currents

• the altitude above sea level

Tags

NGSS.MS-ESS2-6

Which of the following materials is NOT a fluid?

• air

• gasoline

• water

• cork

In order to calculate pressure exerted on a surface, what quantity is divided by the surface area?

• force

• mass

• altitude

• volume

The pressure of a fluid at a specific depth

• varies with the total volume of the fluid.

• is exerted only in the downward direction.

• depends only on the type of fluid,

• all of the above.

What is the SI unit of pressure?

• g/cm3

• m/s2

• the newton

• the pascal

Where is fluid pressure greatest?

• 30 centimeters below the surface of a swimming pool.

• 1 meter below the surface of a swimming pool.

• 2 meters below the surface of a swimming pool.

• the pressure is the same is the same in all parts of a swimming pool.

The operation of a hydraulic lift system is explained by

• Pascal's principle

• Newton's principle

• Bernoulli's principle

• Archimedes' principle

The hydraulic system of a dump truck is designed to multiply

• speed

• pressure

• distance

• force

In figure 13-1, 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

The upward force acting on the wing of an airplane in flight is called

• drag

• lift

• weight

• mass