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What is an instrument that measures changes in air pressure using liquid mercury?
Wiki User
∙ 7y ago
Any liquid can actually be use in a tube (barometer) to measure air pressure, but there are various advantages in using Mercury for the purpose.
1. Mercury is a shiny liquid (a liquid metal) so it can be easily seen through the glass tube. Other liquid like water are transparent.
2. Mercury is very heavy. So only 76cms of it rises in the tube. Had you been using water for the purpose, you would need a glass tube as long as 55ft.
3. Mercury does not stick to the glass surface inside, so the reading obtained is much more accurate and precise. Remember: Water droplets stick to glass.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoOne common type of barometer contains a glass tube filled with mercury which is then inverted over a pool of mercury. The height of the column of mercury is the pressure that is placed on the pool of mercury. This is air pressure.
Wiki User
∙ 11y agoThis is called a barometer.
barometer
Barometer
Wiki User
∙ 10y agono
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The thermometer contain air or nitrogen above the liquid.
Wiki User
∙ 9y agoA mercury filled glass tube used to measure air temperature is called a thermometer.
Air pressure is measured by a barometer.
Wiki User
∙ 11y agobarometer
Wiki User
∙ 8y agothermometer
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What is a mercury barometer?
A mercury barometer is a device that measures air pressure. The key component that distinguishes it from other barometers is the metal mercury.
What measures a barometer with Mercury?
Maybe you mean what does a mercury barometer measure. In which case the answer is atmospheric pressure.
What measures the atmosphere?
The atmosphere has numerous measurable properties, including pressure, temperature, humidity, velocity. Each of these is measured by a different instrument. Pressure is measured by a barometer, temperature is measured by a thermometer, etc.That would be a barometer. I assume you are referring to atmospheric pressure.
What deos a barometer measure?
A barometer is used to measure air pressure. It measures the atmospheric pressure using air, mercury, or water and will be shown as inches of mercury or millibars.
A manometer is used to measure?
an instrument for measuring the pressure of a fluid, consisting of a tube filled with a liquid, the level of the liquid being determined by the fluid pressure and the height of the liquid being indicated on a scale
What does a mercury barometer measures?
Barometers are used to measure pressure.
What is a mercury barometer?
A mercury barometer is a device that measures air pressure. The key component that distinguishes it from other barometers is the metal mercury.
How does a mercury pressure device work?
A sphygmomanometer is also known as a mercury pressure device. It works by a mechanical manometer made of mercury that measures the pressure.
What measures a barometer with Mercury?
Maybe you mean what does a mercury barometer measure. In which case the answer is atmospheric pressure.
What measures the atmosphere?
The atmosphere has numerous measurable properties, including pressure, temperature, humidity, velocity. Each of these is measured by a different instrument. Pressure is measured by a barometer, temperature is measured by a thermometer, etc.That would be a barometer. I assume you are referring to atmospheric pressure.
What deos a barometer measure?
A barometer is used to measure air pressure. It measures the atmospheric pressure using air, mercury, or water and will be shown as inches of mercury or millibars.
What is the physical quantity measured by a barometer?
A barometer is an instrument used to measure atmospheric pressure. It can measure the pressure exerted by the atmosphere by using water, air, or mercury. Pressure tendency can forecast short term changes in the weather. Numerous measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems, and frontal boundaries.See the related link .A barometer measures air pressure.A barometer is an instrument that is used to measure atmospheric pressure.
What is mercury filled glass tube that measures air pressure?
This is called a barometer.barometerBarometer
Is manometer used to measure the pressure of liquid?
yes,manometer is an instrument . It is used to measure pressure of liquid.
What is the barometer used for and how does it work?
A barometer is an instrument used to measure atmospheric pressure. It can measure the pressure exerted by the atmosphere by using water, air, or mercury. Pressure tendency can forecast short term changes in the weather. Numerous measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems, and frontal boundaries.
What instruments are used to measure the atmospheric pressure?
Usually the instrument used is called a barometer- which could be a closed end manometer or an aneroid barometer.An altimeter actually also measures atmospheric pressures - but for a different purpose.
What does weather inches in pressure mean?
Air pressure measured in inches of mercury indicates the level to which a column of mercury rises after being set to a standard pressure initially. One end of the bent mercury tube is closed off, preserving the pressure that existed at the time the tube was closed. Changes in the level of mercury on the other side of the tube reflect changes in air pressure.
