Air Pressure and Weather Systems

What is the air pressure at Earth's surface in pounds per square inch (psi)?

• 14.7 psi

• 10.5 psi

• 20.3 psi

• 5.6 psi

In a low pressure system, winds swirl in which direction north of the equator?

• Counterclockwise

• Clockwise

• Straight

• Random

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is the term used to describe the weight of all the air above us?

• Air pressure

• Air density

• Air volume

• Air mass

Tags

NGSS.MS-ESS2-5

The Ideal Gas Law explains how air pressure depends on temperature and ___.

Air pressure is measured in millibars, abbreviated as ___.

When air pressure decreases, what happens to the temperature according to the Ideal Gas Law?

• Temperature decreases

• Temperature increases

• Temperature remains constant

• Temperature fluctuates

Which of the following statements is true? (more than one answer)

• If air pressure increases, the temperature must

  increase

• When the density of air is high, the air

  pressure is lower.

• Air gets colder at higher altitudes where air pressure is lower.

• When the density of air is high, the air

  pressure is high.

Tags

NGSS.MS-ESS2-5