Fluids

A unit of pressure is _____

• bernoulli

• pascal

• pound

• meter

To calculate the density use the formula

• m/V

• f.d

• W/t

Four glass tanks contain water as shown below. In Dwhich tank is the pressure of the water on the base

the greatest?

• A

• B

• C

• D

The diagram below shows an instrument used to measure gas pressure. What is the instrument called?

• Barometer

• Manometer

The diagram shows a simple mercury ______________.

• Barometer

• Manometer

Water in a lake is 221 m deep. What is the water pressure at the base of the dam?

• 2.21 × 10⁶ 𝑃𝑎

• 2.21 × 10⁴ 𝑃𝑎

• 2221 𝑃𝑎

• 2210 Pa

Which of the following is a fluid?

• liquid

• solid

• gas

Which of the following is a formulas can be used to calculate pressure? (Choose all the correct answers)

• F/A

• pgh

• F.d

• mgh

The hydraulic lift in the figure below can lift a 12200 N car when a force of 715 N is applied to the small piston. If the radius of the large piston is 19 cm, what is the radius of the small piston?

• 4.6 𝑐𝑚

• 46 𝑐𝑚

• 715 𝑐𝑚

• 19 cm

The system shown in the diagram contains a liquid. A downward force of 80 𝑁 is exerted on piston 𝐾.Determine the pressure applied to the fluid by piston 𝐾.

• 𝑃 = 2 × 10⁵ 𝑃𝑎

• 𝑃 = 2 × 10³ 𝑃𝑎

• 𝑃 = 80 × 10⁵ 𝑃𝑎

• 𝑃 = 160 × 10⁵ 𝑃𝑎