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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.
What else can I help you with?
Why is barometer useful?
Because it has a high density... meaning that the volume increase or decrease due to altitude change is can be viewed in a practical sized barometer. If water, which had a much lower density, was used instead of Mercury, the barometer must be at least 15m high.
Will shadows on mercury change length more or less quickly than shadows on earth?
Less quickly becaus it takes longer to rotate on its axis therefore one mercury day equals 59 earth days
Why does the seasons change according to mythology?
persephone, demeter's daughter is carried to the underworld every six months a year which causes the change of the seasons.
Why can an aneroid barometer measure elevation as well as air pressure?
An aneroid barometer measures air pressure using a flexible metal chamber that expands or contracts based on changes in air pressure. As elevation increases, the air pressure decreases, causing the metal chamber to expand. By calibrating the device, the change in chamber size can be used to estimate the change in elevation.
What planet has a surface that changes constantly?
Mercury has a surface that changes constantly due to its extreme temperature variations between day and night, causing its surface to expand and contract. This creates faults and fractures that can shift and change over time.
Why must there be a near vacuum in the tube of mercury barometer?
A near vacuum is necessary in the tube of a mercury barometer to isolate the mercury from atmospheric pressure fluctuations. This allows the mercury to accurately reflect changes in pressure without external interference.
What is a mercury barometer?
A mercury barometer is a device used to measure atmospheric pressure. It consists of a glass tube filled with mercury, with one end submerged in a mercury bath. Changes in atmospheric pressure cause the level of mercury in the tube to rise or fall, which can be used to determine the current pressure readings.
How is the can in the pan of water similar to the mercury barometer?
Both the can in the pan of water and the mercury barometer function based on the principle of atmospheric pressure. In both cases, changes in atmospheric pressure will cause a corresponding change in the level of water or mercury in the device. The height of the water or mercury serves as an indicator of the atmospheric pressure at that moment.
Why is barometer useful?
Because it has a high density... meaning that the volume increase or decrease due to altitude change is can be viewed in a practical sized barometer. If water, which had a much lower density, was used instead of Mercury, the barometer must be at least 15m high.
What are the difference between the mercury barometer and aneroid barometer?
A mercury barometer works by, measuring the height of a column of mercury in a sealed tube, supported by the atmospheric pressure.An aneroid barometer measures the amount of distortion of a sealed metal can, due to changes in atmospheric pressure. The equivalent column of mercury supported by a mercury barometer, can then be calibrated in mmHg by comparison.Both instruments do the same job and can be calibrated in Millibars or mmHg, or both.
How do fortin barometers work?
The way the Fortin barometer works is different in a sense that it uses atmospheric pressure to balance the weight of a column of mercury against it. From that, any change in the atmospheric pressure is accompanied by an immediate change in the level of the mercury and can be measured against the scale engraved on the barometer.
Why is mercury used in barometers instead of water?
Because it has a high density... meaning that the volume increase or decrease due to altitude change is can be viewed in a practical sized barometer. If water, which had a much lower density, was used instead of mercury, the barometer must be at least 15m high.
How would a barometer reading change with a cold front?
A barometer reading would change with a cold front because the density of mercury will change with temperature, so a reading must be adjusted for the temperature of the instrument. For this purpose a mercury thermometer is usually mounted on the instrument. Temperature compensation of an aneroid barometer is accomplished by including a bi-metal element in the mechanical linkages. Aneroid barometers sold for domestic use typically have no compensation.
Why doesn't Mercury boil in the vacuum tube of a barometer?
there must be vacuum in the Mercury barometer because if air enters the tube the barmeter would become faulty as air pressure will change.
What indicates a change in weather?
A barometer.
What was the Mercury barometer used for?
The mercury barometer is a tool used by meteorologists and other scientists to find the air, or "barometric" pressure. Because mercury is liquid at room temperature, it can change shape due to changes in the atmosphere. Earth's barometric pressure is characterized as the downward force of air on the surface of Earth. If mercury is placed in a tube and the level decreases by a huge increment, it would show an increase in barometric pressure. Mercury barometers can also be used to detect incoming storms as right before a storm, the air pressure decreases drastically.
Does temperature change effect the accuracy of a barometer?
Yes, temperature changes can impact the accuracy of a barometer. Temperature variations can cause the air pressure inside the barometer to change, affecting its reading. It is important to calibrate the barometer regularly to account for temperature changes and ensure accurate readings.
