What are the uses of mercury barometer?

A mercury barometer is a device that is used to measure the atmospheric pressure at a given location. The barometer consists of a vertical glass tube that is closed at one end.

1. What are the uses of barometer?
2. How does a mercury barometer work?
3. What is mercury barometer Wikipedia?
4. How much mercury is in a barometer?
5. What is the use of barometer Class 7?
6. How do you transport a mercury barometer?
7. Why is mercury used in mercury barometer?
8. What is mercury barometer Class 9?

What are the uses of barometer?

A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure. The atmosphere is the layers of air wrapped around the Earth. That air has a weight and presses against everything it touches as gravity pulls it to Earth. Barometers measure this pressure.

How does a mercury barometer work?

How does a barometer work? Simply put, a barometer acts like a balance that 'balances' the weight of the atmosphere (or air around you) against the weight of a mercury column. If the air pressure is high, the mercury will rise. At low air pressure, the mercury goes down.

What is mercury barometer Wikipedia?

Mercury barometers. A mercury barometer is an instrument used to measure atmospheric pressure in a certain location and has a vertical glass tube closed at the top sitting in an open mercury-filled basin at the bottom. ... High atmospheric pressure places more force on the reservoir, forcing mercury higher in the column.

How much mercury is in a barometer?

I know that I can fill three banjo or open-cistern stick barometers' mercury systems with one pound of mercury, so each instrument contains about 5.5 ounces (156 grams).

What is the use of barometer Class 7?

A barometer is an instrument which is used to measure the atmospheric pressure at a certain place or altitude. There are many uses to a barometer. The pressure tendencies which are measured using this instrument can help in the forecasting of short-term changes in the weather conditions of a place.

How do you transport a mercury barometer?

The best advice we can give is to just tilt the barometer slowly and gently to 45 degrees and let the top of the tube fill with mercury, then transport the barometer at that angle. Be sure to wrap the barometer in a good, stout plastic bag to contain any possible mercury spills, and cushion it well.

Why is mercury used in mercury barometer?

In the barometer mercury is used as the barometric liquid. ... Mercury has high density. Because of this property, when there is a change in pressure the change in height of the mercury in the barometer tube will be very reasonable.

What is mercury barometer Class 9?

Mercury Barometer

It consists of a glass column with mercury and inches markings on it. The top end of the tube is closed and the bottom end is rested in a cup containing mercury known as a cistern. To increase the accuracy, these barometers are corrected for ambient temperature and the local value of gravity.