(Savvas 13.1) Chapter 13 Fluid Pressure

Pressure is the result of a(n) ______ distributed over a(n) ______.

• force; area

• mass; volume

• energy; time

• velocity; distance

The same force is exerted by each of the following. Which exerts the most pressure?

• a foot

• a large book

• a fingertip

• the tip of a ball-point pen

Pressure is calculated as?

• Force per unit area

• Mass per unit volume

• Energy per unit time

• Distance per unit time

A wooden crate that measures 2.0 m long and 0.40 m wide rests on the floor. If the crate has a weight of 600.0 N, what pressure does it exert on the floor?

• 0.80 m²

• 480 Pa

• 3.0 x 10³ N/m²

• 750 Pa

A substance that assumes the shape of its container is called a(n) ______.

• liquid

• fluid

• gas

• plasma

Tags

NGSS.MS-PS1-4

List four examples of fluids.

• Water Air Oil Honey

• Rock Sand Metal Wood

• Ice Stone Iron Glass

• Plastic Rubber Paper Cloth

Is the following sentence true or false? The pressure at a depth of 2 feet in a large lake is greater than the pressure at the same depth in a swimming pool.

• True

• False

Instead of referring to their depth in the atmosphere, people refer to their _______ above sea level.

• altitude

• longitude

• latitude

• depth

Complete the air pressure columns in the table by converting between units of air pressure. Hint: 1 bar = 101.3 kPa. What is 2 bars in kPa?

• 202.6 kPa

• 101.3 kPa

• 50.65 kPa

• 303.9 kPa

As altitude increases, how does air pressure change?

• Air pressure increases

• Air pressure decreases

• Air pressure remains constant

• Air pressure fluctuates unpredictably