barometer

What happens to air pressure as you move upward into the atmosphere?

• increases
• decreases
• stays the same

A device that is used to measure atmospheric pressure is a ___________.

• barometer
• thermometer
• kilometer
• micrometer

Explain what would happen to the column of mercury in the barometer as shown if the atmospheric pressure fell.

• As the pressure falls, the column of mercury will drop lower.
• As the pressure falls, the column of mercury will remain unchanged.
• As the pressure falls, the column of mercury will rise higher.
• As the pressure falls, the density of the mercury will increase.

Tags

NGSS.MS-ESS2-5

Pressure is the effect of

• the weight of all the air above pressing down
• water vapor in the atmosphere
• greenhouse gases
• solar radiation

The diagram shows an apparatus set up to measure atmospheric pressure.

Calculate the pressure at point Q.

• 10 cm Hg

• 85 cm cm Hg

• 90 cm Hg

• 15 cm Hg

The diagram shows a set up of apparatus for measuring atmospheric pressure. If the density of mercury is

13,600 kgm^-3, determine the atmospheric pressure as measured by the instrument.

• 100,000 Pa

• 101,000 Pa

• 123,760 Pa

• 103,360 Pa

The barometer shows the reading when the atmospheric pressure is 101,000 Pa. The height of the column of mercury is h. What is the pressure at point X?

• 0 Pa

• 25,250 Pa

• 75,750 Pa

• 101,000 Pa

The figure shows a simple barometer with some air trapped in the tube. Given that atmospheric pressure is 76 cm Hg, find the pressure of the trapped air.

• 21 cm Hg

• 24 cm Hg

• 45 cm Hg

• 55 cm Hg

A barometer is used to determine the pressure of the atmosphere. The barometer shows the pressure on a particular day. If the density of mercury is 13,600 kg m^-3, what is the reading of the barometer?

• 101,000 Pa

• 102,000 Pa

• 10,200 Pa

• 1,020 Pa

Tags

NGSS.MS-ESS2-5

The barometer in the diagram shows the measurement of the atmospheric pressure. At sea level, the atmospheric pressure is 76 cm Hg. Why is the reading of this barometer different?

• The barometer is broken

• The barometer is measuring water pressure

• The barometer is below sea level

• The barometer is above sea level

Tags

NGSS.MS-ESS2-5