Mercury Barometer

Name this instrument that measure air temperature.

• barometer
• thermometer
• psychrometer
• hygrometer

This instrument uses mercury to measure air pressure.

• thermometer
• anemometer
• barometer
• rain gauge

An instrument tha measures air pressure without using a liquid. 

• Aneroid barometer
• Mercury barometer
• Aneroid gauge
• Mercury thermometer

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.