Why is there wind in the air and why is there wind?

Wind formation is the result of the movement of air.

Everywhere on the earth absorbs the heat of the sun, but due to the unevenness of heating in each part of the ground, the air is not the same degree of cold and warm, so the warm air expands and rises after becoming lighter; The cold air cools and becomes heavier and then falls, so that the cold and warm air flows and forms the wind.

Wind is the air that moves horizontally, and the movement of the air is mainly due to the different intensities of solar radiation received by the latitudes of the earth. In the equatorial and low latitudes, the solar altitude angle is large, the sunshine time is long, the solar radiation intensity is strong, the ground and atmosphere receive more heat, and the temperature is higher. In higher latitudes, the solar altitude angle is small, the sunshine hours are short, the ground and atmosphere receive less heat, and the temperature is low. This temperature difference between high and low latitudes forms a pressure gradient between north and south, so that the air moves horizontally, and the wind should blow along the horizontal pressure gradient, that is, vertically and isobars blow from high pressure to low pressure.

Our physics teacher just said that it is because there is cold air and hot air in the air, and if the cold air wants to absorb heat, it will run in the direction of the hot air, forming air convection, and there will be wind! Hey.

It is not the wind in the air that forms it, but the horizontal movement of the air that forms the wind. Wind is a phenomenon, not a substance.

When the sun shines on the ground, there is a temperature difference, and the temperature difference brings about the flow of gases, and the flow of gases produces wind.

Psychological effect: You feel that the wind has blown away all the bad things on your body, which is an effect. Just as when we go to see others after doing bad things, we will want to wash our hands, because we will feel that this will wash away the bad things, and the wind is also the principle.

Physics: When there is wind, the air is highly mobile, which accelerates the evaporation of water on the surface of the human body. (There is also water on the surface of the human body, but there is too little, and a water molecule is also very small and invisible) evaporation takes away the heat, the body will cool down, the mood will be calmer, and there will be less irritability.

Biological: Wind brings a lot of oxygen, which is used by the body to breathe. When the oxygen concentration is high, the breathing slows down, the muscles will relax a little, and it will naturally be relaxed.

There should be more reasons, but I'm only in junior high school, so I can think of so much! I feel that when the wind blows, the whole person becomes lighter, and then the mood will unconsciously become better, and I will think of the autumn and winter in the past, and I am in a super happy state.

The uneven heat and cold cause air flow, and the air flow forms a wind ,...

In nature, there are different winds in different regions and seasons, but winds are formed by air flow.

In coastal places, there is a sea breeze during the day and a land breeze at night. This is because the sun shines on the earth, and the temperature on the land of Shirahashi Yuten, which is higher than the sea surface, and the hot air on the land is constantly rising, and the cold air on the sea surface is constantly flowing to the land to replenish it, and this air flow from the sea to the land forms the sea breeze. At night, the temperature on land drops very quickly, and the temperature on the sea surface drops very slowly, so the temperature on the sea surface is higher than on land, so the cold air on land is supplemented by flowing to the sea surface, and this atmospheric flow forms the land breeze.

In the mountains, there are also valley winds. When the sun comes out during the day, the sunlight shines on the hillside, and the temperature of the air layer close to the hillside rises, and the hot air rises along the hillside, and the cold air rises from the valley to the top of the mountain to replenish it, and this top-down air flow forms the valley wind. At night, when the sun has set, the summit and the mountainside cool very quickly, so the thin layer of air near the summit and the mountainside also cools quickly, while the air that accumulates in the valley is still warm, and the cold air near the summit and the mountainside flows to the bottom of the valley, forming a valley wind.

In most parts of our country, the southeast wind blows in summer and the northwest wind blows in winter, this is because our country is bordered by the Pacific Ocean in the east, and the sensitive rotten rock is irradiated by the sun in summer, and the temperature on the continent is higher than that of the ocean, and the cold air flows from the ocean to the mainland, so the southeast wind blows. In winter, the temperature on the continent is lower than that of the ocean, and the cold air from the continent flows to the ocean, so the northwest calendar winds are blowing.

Whether it is the sea breeze, land breeze, valley breeze, northwest wind, southeast wind, it is formed by the sun's irradiation that causes the earth's atmosphere to flow.

Summary. Hello, dear. There are two reasons for the formation of winds, namely the rotation of the earth and the difference in how much the earth's surface is heated by the sun. Wind formation is the result of the movement of air.

Hello, dear. There are two reasons for the formation of winds, namely the rotation of the Earth and the differential fronts to which the Earth's surface is heated by the Sun. The formation of wind is the result of the air-sensitive closure and the flow of air.

Dear, for you to expand the wind is a natural phenomenon caused by the movement of air, which is caused by solar radiation. When the sun hits the ground, due to the different properties of each part of the earth's surface, the heat is uneven, and the temperature of the air in various places will be high and low. Because of the principle of thermal expansion and cold contraction, the air pressure is low when the temperature is high, and the air pressure is high when the temperature is low.

When there is a difference in air pressure between the two, the air will move from the ground with high air pressure to the low air pressure, and the wind will blow. The greater the difference in air pressure, the sharper the wind, and if the pressure is equal, the wind stops.

Summary. Hello, dear. "Wind is the phenomenon of air movement caused by the rotation of the earth and the degree of heating on the surface. There are two main reasons for its formation: one is the rotation of the earth, and the other is the difference in the degree to which the earth's surface is heated by the sun.

Hello, dear. "Wind is the phenomenon of air movement caused by the rotation of the earth and the degree of heating on the surface. There are two reasons for its formation: one is the rapid rotation of the earth, and the other is the difference in the degree to which the earth's surface is heated by the sun.

Dear, for you to expand a little wind is caused by the movement of the air. Air, on the other hand, is made up of many gas molecules that move randomly and incessantly. When air with different air temperatures meets, the speed of movement of the molecules will also be different due to the difference in temperature, resulting in wind.

In addition to the effect of air temperature, there is also the effect of the Earth's rotation. Due to the rotation of the Earth, the gases near the equator are subjected to the centrifugal force of the Earth and flow to both sides of the equator, forming the equatorial low pressure zone. At the same time, the gas near the poles is affected by the attraction of the earth and flows towards the center of the earth, forming a polar high-pressure zone.

This is also an important cause of wind. In addition, there are factors such as topography, ocean temperature, land surface cover, etc., which can also affect the generation of wind. For example, in the ocean, the water rises and the cold water sinks, creating a pressure difference on the surface of the ocean, and wind is also generated.