Milibar (mb)

The video tutorial explains atmospheric pressure, focusing on the unit of measurement called the millibar, which is a thousandth of a bar. It equates to the pressure exerted by 1 G per square centimeter. The tutorial also mentions that the average atmospheric pressure at sea level is 1013 millibars.

What is the primary unit used to measure atmospheric pressure?

• Atmosphere

• Torr

• Millibar

• Pascal

How is a millibar related to a bar?

• It is equal to a bar

• It is one thousandth of a bar

• It is one tenth of a bar

• It is one hundredth of a bar

What is the pressure equivalent of 1 G per square centimeter?

• 1 Torr

• 1 Atmosphere

• 1 Millibar

• 1 Pascal

What is the average atmospheric pressure at sea level in millibars?

• 1000 millibars

• 1050 millibars

• 1013 millibars

• 1020 millibars

Which of the following is true about atmospheric pressure at sea level?

• It is approximately 1013 millibars

• It is always constant

• It is measured in Pascals

• It is equivalent to 1 bar