0
What else can I help you with?
What does a mercury barometer measure and how does it work?
A mercury barometer measures atmospheric pressure, which is the weight of the air pressing down on Earth's surface. It works by using a column of mercury in a sealed tube to balance the pressure of the air outside. When the air pressure increases, the mercury in the tube rises, and when the air pressure decreases, the mercury falls.
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.
Does Mars have Air pressure?
Yes, it has an atmosphere so it has air pressure.
What word describes the weight of the air at any particular point on earth?
Air pressure describes the weight of the air at any specific point on Earth. It is measured in units like millibars or inches of mercury.
How heavy is air pressure near earth's surface?
About equal to 30 inches of Mercury.
What a barometer with Mercury?
barometers with mercury measure air pressure. when the air pressure is high the mercury rises
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.
What amount of force that air is placing on the earth is called?
The force exerted by air on the Earth's surface is called atmospheric pressure. This pressure is the result of the weight of the air above pressing down on the surface below. It is typically measured in units of pressure such as millibars or inches of mercury.
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.
How does the air pressure at the surface of the earth compare to the air pressure at about 7 miles above earth?
The air pressure at the surface of the Earth is much higher (roughly 14.7 pounds per square inch) compared to the air pressure at 7 miles above Earth, which is much lower due to the thinner atmosphere at higher altitudes. The pressure decreases with increasing altitude, following the barometric formula.
How does the weight of mercury in barometer tube compared with weight of equal cross section of air from sea level to top of atmosphere?
The weight of mercury in a barometer tube is significantly greater than the weight of an equal cross section of air from sea level to the top of the atmosphere. This is due to the much higher density of mercury compared to air. The weight of the mercury column in the barometer creates the atmospheric pressure that is measured.
When air pressure increases the liquid in a Mercury barometer what?
When air pressure increases, it exerts greater force on the surface of the mercury in the barometer. This additional pressure causes the mercury to rise higher in the glass tube, indicating a higher atmospheric pressure. Conversely, if the air pressure decreases, the mercury level falls. Thus, the height of the mercury column in the barometer is directly related to the atmospheric pressure.
