Does cool air push warm air upward?
This type of front is called a warm front. It generates nimbostratus clouds, which can result in moderate rain. On the other hand, when a cold air mass catches up with a warm air mass, the cold air slides under the warm air and pushes it upward.
What are the factors affecting the movement of air?
There are 5 major factors affecting global air circulation : – uneven heating of earth’s surface, seasonal changes in temperature and precipitation, rotating of earth on its axis, properties of air and water and long term variation in the amount of solar energy striking the earth.
What happens when air cools?
Because each molecule uses more space for motion, the air expands and becomes less dense (lighter). The opposite effect happens when air cools. As the temperature drops, molecules move more slowly, taking up less room. The amount of space the air takes up shrinks, or reduces the air pressure.
What happens to air pressure as altitude increases?
As altitude rises, air pressure drops. In other words, if the indicated altitude is high, the air pressure is low. This happens for two reasons. As altitude increases, the amount of gas molecules in the air decreases—the air becomes less dense than air nearer to sea level.
Is air affected by temperature?
Air pressure is influenced by temperature because, as the air is warmed, the molecules start moving around more, so they bump into each other more often and create more pressure. But, air pressure also affects temperature – the more those molecules bump into each other, the more heat they generate.
What happens when air sinks and rises?
When air rises, it expands and cools. What happens to air when it sinks? When air sinks it compresses and the temperature increases. -As air temperature rises, air expands and the density and pressure decreases.
What causes air to move answers?
The movement of air through Earth’s — or any planet’s — atmosphere is called wind, and the main cause of Earth’s winds is uneven heating by the sun. This uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.
What causes unequal heating of the atmosphere?
Earth’s orbit around the sun and its rotation on a tilted axis causes some parts of Earth to receive more solar radiation than others. This uneven heating produces global circulation patterns. For example, the abundance of energy reaching the equator produces hot humid air that rises high into the atmosphere.
What do you call a moving air?
Wind is moving air and is caused by differences in air pressure within our atmosphere.
What is it called when air moves fast and strong?
When the air moves fast, It is called wind. Sometimes, the wind moves very fast along with heavy rains.
What is it called when air moves slowly?
When air moves slowly, it is called as Breeze.