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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.
A decrease in the height of a column in a mercury barometer means that?
there is a decrease in atmospheric pressure. Atmospheric pressure is directly proportional to the height of the mercury column in a barometer. When the height decreases, it indicates that the pressure in the atmosphere is lower.
What is use to measure atmosphere pressure?
Standard atmospheric pressure at sea level is taken as 1 atmosphere for all intensive purposes. Atmospheric pressure near to the surface of the earth is about 1 atm. If we go above it decreases and increases we move towards the center of the earth.
When the height of the mercury in a barometer is 29.92 inches the barometric pressure is?
When the height of the mercury in a barometer is 29.92 inches, the barometric pressure is equivalent to standard atmospheric pressure at sea level, which is 1013.25 millibars or 14.7 pounds per square inch (psi).
What does it mean when the straw moves up barometer air pressure?
If you have taped a straw to a balloon stretched over a jar top as a simple barometer, when the straw moves up, this is a sign of high pressure (atmosphere pressing down on the balloon). High pressure usually means fine weather.
How does the pressure at the bottom of a 76-cm column of mercury in a barometer compare with the air pressure at the bottom of the atmosphere?
If the barometer is in the same place where you're measuring the air pressure, then they're exactly equal.
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.
A decrease in the height of a column in a mercury barometer means that?
there is a decrease in atmospheric pressure. Atmospheric pressure is directly proportional to the height of the mercury column in a barometer. When the height decreases, it indicates that the pressure in the atmosphere is lower.
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 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 is use to measure atmosphere pressure?
Standard atmospheric pressure at sea level is taken as 1 atmosphere for all intensive purposes. Atmospheric pressure near to the surface of the earth is about 1 atm. If we go above it decreases and increases we move towards the center of the earth.
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.
What was the device that Torricelli invented for measuring air pressure called?
The device that Torricelli invented for measuring air pressure is called a barometer. It works by balancing the weight of the atmosphere with the weight of a column of mercury in a glass tube.
When the height of the mercury in a barometer is 29.92 inches the barometric pressure is?
When the height of the mercury in a barometer is 29.92 inches, the barometric pressure is equivalent to standard atmospheric pressure at sea level, which is 1013.25 millibars or 14.7 pounds per square inch (psi).
Could a mercury barometer be used to measure the barometric pressure of the atmosphere on mars?
No, a mercury barometer relies on the density and height of a column of mercury in a tube to measure atmospheric pressure. However, Mars has a thin atmosphere with low pressure, so mercury would not provide accurate readings. Other pressure-measuring devices, like electronic sensors, would be more suitable for measuring barometric pressure on Mars.
