Question

how can you prove that atmospheric pressure occurs??

Answer 1

This is because the force caused by the atmospheric pressure acts on the surface of the cardboard is greater than the weight of the water in the glass. This experiment proves that atmospheric pressure is present on the surface of the earth.

Answer 2

Answer:

A barometer is frequently used to measure atmospheric pressure. A mercury column in a glass tube acts as a barometer, rising or falling in response to variations in the atmosphere's density. By measuring how much the mercury rises, meteorologists can determine the air pressure. The subsequent tests can be used to demonstrate that atmospheric pressure exists.

1. Crushing can experiment
2. No water flows out of a cardboard water cover.
3. Magdeburg Hemisphere

Explanation:

1. Crushing can experiment:

• When a can of boiling water is sealed and swiftly cooled by pouring cold water on it, the can will instantly crash.
• This experiment demonstrates the tremendous pressure that the atmosphere places on everything on Earth's surface.

2. No water flows out of a cardboard water cover:

• Despite being unsupported, the cardboard does not collapse and the water in the glass stays in place.
• This is the case because the weight of the water in the glass is larger than the force the ambient pressure exerts on the cardboard's surface.
• This experiment establishes the existence of air pressure on the earth's surface.

3. Magdeburg Hemisphere:

• The hemisphere cannot be divided, not even by a very strong force, when the air inside it is forced out until it is a vacuum.
• This is due to how low the pressure is inside the hemisphere when the air is blasted out.
• The hemisphere is held securely together by the strong force that the atmospheric pressure exerts on its outside.

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