How are clouds formed? Answer with physics knowledge .

It's mine; Clouds are made up of many tiny water droplets or ice crystals, and some are made up of small water droplets or Xiaoice crystals mixed together. Sometimes it also contains some large raindrops, ice and snow particles, and the base of the cloud does not touch the ground and has a certain thickness. Cloud formation is mainly caused by condensation of water vapor.

After the water vapor enters the lower atmosphere from the evaporation surface, the temperature here is high, and the water vapor contained is more, and if this hot and humid air is lifted, the temperature will gradually decrease, and at a certain height, the water vapor in the air will reach saturation. If the air continues to be lifted, excess water vapor will be precipitated. If the temperature there is higher than 0°C, the excess water vapor condenses into small droplets; If the temperature is below 0 °C, the excess water vapor condenses into Xiaoice crystals.

When these small water droplets and Xiaoice crystals gradually increase to the point where the human eye can recognize them, it is the clouds that can float in the air because they are smaller.

Formed by liquefaction of water vapor.

How clouds are formed, take you to understand the common sense of scientific knowledge.

The formation of clouds belongs to liquefactionChange of state of matterIn the process of cloud formation, the water from the ground evaporates, and then the water vapor from the air.

When it condenses, it forms small droplets of water and gathers together to form a cloud.

Clouds floating in the sky are made up of many tiny water droplets or ice crystals, and some are made up of small water droplets or Xiaoice crystals mixed together. Sometimes it also contains some large raindrops, ice and snow particles, and the bottom of the cloud does not touch the ground and has a certain thickness.

An additional snapshot of the cloud. There are two main types of clouds, cumulus and stratus. Curocumulus clouds in turn include Cirrocumulus clouds.

Altocumulus, Cumulonimbus.

Cumulus clouds, stratus clouds include cirrostratus, stratus, nimbostratus, stratocumulus, stratus.

Stratus clouds are the lowest clouds, like a thick fog covering the air, and are often mistaken for alpine fog when they first appear. They are not very natural rain clouds, but they can also form misty drizzles. If at night it gets thicker and thicker and covers the morning sky, usually it will be a clear day, with a height of no more than 2,500 meters.

Liquefaction, condensation.

Clouds, the composition of clouds is more complex, it can be small water droplets, ice particles, or Xiaoice crystals. They are due to water vapor at low altitudes.

Rises to a high place, formed by cold and heat. The formation of small water droplets is called liquefaction, the formation of ice particles is called coagulation, and the formation of Xiaoice crystals is called condensation. The process of cloud formation is an exothermic process.

Cumulonimbus clouds are formed.

3 necessary conditions.

1. A large amount of unstable energy. To produce convective weather, first of all, the atmosphere is unstable, and in the atmosphere that stores a large amount of unstable energy, once it is subjected to sufficient shock force.

The unstable energy is then released and becomes the kinetic energy of the upward motion of the air.

2. Sufficient moisture. Abundant water vapor also forms thunderstorms.

If there is no abundant water vapor, even if convection occurs, it is not possible to rent socks and produce tall thunderstorm clouds. As a result, thunderstorm clouds tend to occur at times or areas where there is plenty of moisture.

3. Sufficient impact. The presence of unstable energy and water vapor in the atmosphere makes thunderstorms possible. For this to become a reality, there needs to be enough force to cause the air to rise above the level of free convection, so that the unstable energy can be released and the updraft can develop strongly to form a thunderstorm cloud.

Clouds are visible polymers floating in the air composed of small water droplets or Xiaoice crystals formed by the liquefaction of water vapor in the atmosphere when cold. When the sun shines on the Earth's surface, the water evaporates to form water vapor, and once the water vapor is supersaturated, water molecules collect around the dust (condensation nuclei) in the air, and the resulting water droplets or ice crystals scatter sunlight in all directions, which gives the appearance of clouds.

Water vapor enters the lower atmosphere from the evaporation surface, where the temperature is high, and the water vapor contained is more, and if the hot and humid air is lifted, the temperature will gradually decrease, and when it reaches a certain height, the water vapor and Bi in the air will reach saturation. If the air continues to be lifted, excess water vapor will be precipitated. If the temperature there is higher than 0, the excess water vapor will liquefy into small droplets; If the temperature is below 0, the excess water vapor condenses into Xiaoice crystals.

When these small water droplets and Xiaoice crystals gradually increase to the point where the human eye can recognize them, what we call clouds are formed.

A cloud is a collection of water droplets or ice crystal colloids that remain in the atmosphere. The water vapor in the atmosphere liquefied into small water droplets or small Xiaoice crystals condensed when cold, forming clouds. In this layer of the atmosphere more than ten kilometers from the ground, the closer to the ground, the higher the temperature and the more abundant the air; The higher you go, the cooler the temperature and the thinner the air.

One can also determine whether there is rain by looking at the various shapes and colors of the clouds.

From the evolution of clouds, people can see the movement of water vapor and atmospheric movement, and water vapor and the movement of Dachipei collapse play an extremely important role in weather phenomena such as rain, snow, ice, hail, etc. "Sunset shoots, three days of rain falling": refers to the sun shining down from the gaps in the clouds, called "sunshooters", and the sunshooters appear in the evening, indicating that the convection effect is strong, indicating that there is rain.

The sky was full of clouds of different colors, some white as flocculent, some as black as black, some gray as grey, and some as red and purple.

Very thick stratiform clouds, or cumulonimbus clouds, where the light of the sun and moon is difficult to penetrate, and the clouds appear very dark; Slightly thinner stratiform and undulating clouds, which appear gray. Since the clouds are composed of water droplets, ice crystals, and a mixture of the two, the light of the sun and the moon will also cause various beautiful halos or rainbows when they pass through.

The layer thickens and the rainfall increases; When the updraft weakens, the clouds become thinner and the rainfall decreases or stops.

Around noon, when the sun shines strongly, the upper part of the cloud is heated and evaporated, or the updraft below the cloud is weakened, and the cloud at the zenith will crack. As the sun's exposure weakens, or the updraft in the lower part of the cloud intensifies, the cracked clouds re-gather and thicken. Therefore, "the sun is now and scattered" often indicates the continuation of rain.

This proverb is similar to proverbs such as "the sun laughs, drenching the temple" and "the sun shines, and the next rush is simple and bizhang".

When the sun shines on the surface of the earth, water evaporates to form water vapor, and once the water vapor is supersaturated, water molecules collect around the fine dust in the air (condensation).

Water droplets or ice crystals scatter sunlight in all directions, which gives rise to the appearance of clouds, which can take on a variety of shapes, and are divided into many types of bridges due to their different heights and shapes in the sky.

1. The formation of clouds is mainly due to the evaporation of surface water, and the water vapor rises to the high altitude and expands continuously due to too high pressure and too low temperature, forming the water vapor of the saturated bright dust ruler.

2. When the saturated water vapor encounters dust or other floating objects in the air, it will condense in a foot, and when the water vapor gathers to a certain extent, it will be supported into the air by the updraft, forming a cloud floating high in the air.