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What is the difference between the aneroid barometer and a mercury barometer?
An aneroid barometer measures air pressure using a flexible metal box called an aneroid cell, whereas a mercury barometer uses a column of mercury to measure air pressure. Aneroid barometers are more portable and do not use toxic mercury like mercury barometers.
How do you measure the atmosphere pressure?
Atmospheric pressure is commonly measured using a barometer. A mercury barometer measures pressure by the height of a mercury column in a glass tube, while an aneroid barometer uses a flexible metal box to detect pressure changes. Both types of barometers provide a numerical value in units such as millibars or inches of mercury.
If a mercury barometer were carried up a mountain how would you expect the height of mercury column to change?
As a mercury barometer is taken up a mountain, the height of the mercury column would decrease. This occurs because atmospheric pressure decreases with altitude, leading to less force exerted on the mercury in the barometer. Consequently, the lower atmospheric pressure results in a shorter column of mercury being supported.
Evangelista Torricelli invented the first mercury barometer in 1643 and stated that?
Evangelista Torricelli invented the first mercury barometer in 1643 and stated that the height of the column of mercury in the barometer is directly proportional to the atmospheric pressure at that location. This discovery led to the understanding that changes in atmospheric pressure can help predict weather patterns.
Where was the barometer invented?
In Florence, Italy in 1644, Evangelista Torricelli built the first mercury barometer, at the Florentine Academy.
What would happen to a mercury barometer when the air pressure is getting lower?
The height of the column of mercury would be lower.
If a meterologist says that air pressure is getting lower what would you expect to see happen to torriclli's mercury barometer?
If air pressure is getting lower, you would expect to see the mercury in Torricelli's barometer rise. This is because low air pressure allows the mercury in the barometer tube to be pushed up by the weight of the atmosphere.
What are the uses of a Mercury barometer?
A Mercury barometer is used to measure atmospheric pressure.
What measures a barometer with Mercury?
A barometer that uses mercury measures air pressure by monitoring the height of the mercury column in a tube. As air pressure changes, the mercury level rises or lowers in response. This instrument is called a mercury barometer.
An increase in air pressure will cause the mercury in a barometer to?
When you increase air pressure the mercury in a barometer will rise. Conversely when air pressure decreases the mercury in a barometer will drop.
Torricelli invented a device for measuring air pressure called a(n)?
Torricelli invented a device for measuring air pressure called a mercury barometer. It consists of a glass tube filled with mercury placed in a dish of mercury. The height of the mercury in the tube changes with variations in 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.
When air pressuer increases what does the mercury in the barometer do?
Air is "pushed" into the open end of a barometer when the pressure is higher, meaning the mercury closer to the closed end of the barometer - where the pressure is measured - will rise.
What a barometer with Mercury?
barometers with mercury measure air pressure. when the air pressure is high the mercury rises
Why does Mercury stay in the barometer?
A barometer is a closed-system vacuum that allows the mercury to expand with changes in temperature and pressure.
When air pressure increases the liquid in a mercury barometer would what?
The height of the Mercury column would decrease.
When you measure air pressure most accurately you should use a mercury?
barometer. Mercury barometers are very accurate instruments for measuring air pressure because the height of the mercury column is directly proportional to atmospheric pressure. Mercury is a dense liquid, making slight changes in pressure more visible in the barometer.
