Question

Срочно!Почему в металлическом манометре, когда давление увеличивается металлическая трубка, согнутая в дугу разгибается, а когда давление падает, то она сгибается?

Answer 1

Ты сам ответил на вопрос, и-за давления, тобишь когда есть разгибаеться и наоборот

Answer 2

Why does the metal tube in a metal pressure gauge straighten when the pressure increases and bends when the pressure decreases?

When the pressure increases in a metal pressure gauge, the metal tube, which is bent into an arc, straightens. Conversely, when the pressure decreases, the metal tube bends again. This behavior can be explained by the principles of elasticity and the properties of metals.

Metals are known for their ability to deform elastically under stress. When a force is applied to a metal, it undergoes a temporary deformation. However, once the force is removed, the metal returns to its original shape. This property is known as elasticity.

In the case of a metal pressure gauge, the metal tube is designed to be flexible and elastic. When the pressure inside the gauge increases, it exerts a force on the inner surface of the metal tube. This force causes the metal tube to straighten, as it tries to accommodate the increased pressure by expanding in length. The metal tube is able to do this because of its elastic properties.

Conversely, when the pressure inside the gauge decreases, the force exerted on the inner surface of the metal tube decreases. As a result, the metal tube returns to its original bent shape, as it no longer needs to accommodate the higher pressure.

In summary, the metal tube in a metal pressure gauge straightens when the pressure increases and bends when the pressure decreases due to the elastic properties of metals and their ability to deform temporarily under stress.