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The warmer the air is, the more energy the molecules have. The more energy the molecules have, the more they vibrate. When the molecules vibrate, they bounce into each other and push apart from each other, hence the warmer the air is, the less dense it is (number of molecules per unit volume). Colder air has less energy which means more molecules can fit into one space because they are not bouncing off each other.
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∙ 6y ago
Wiki User
∙ 13y agoThe warmer the air is the more energy the molecules have. The more energy the molecules have the more they vibrate. When the molecules vibrate they bounce into each other and push apart from each other, hence the warmer air is; the less dense it is (number of molecules per unit volume). So, colder air has less energy which means more molecules can fit into one space (because they are not bouncing off each other).
Read more: Why_doesn't_cold_air_rise
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∙ 11y agoDuring a cold front, the air rises. During a warm front, warm air rises
Wiki User
∙ 9y agoWarm air becomes less denser than the surrounding air and rises. Once the warm air cools, it becomes denser and sinks.
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Why doesn't a warm air mass under a cold air mass at a warm front?
Warm air is lighter than cold air, that means that warm air will rise and the cold air will sink.
Why do warm air masses rise and cold air masses sink?
Density. You can figure out the details using the ideal gas law.
What makes the movement of air?
Differing air temperature causing cold air to sink, and warm air to rise is the main cause of air movement.
When warm air rises cold air will what?
The cold air will sink.
What is the precipitation at a cold front like?
A cold front brings in cold air. The cold air causes warm air to rise quickly. The rising air forms cumulus clouds. There is often heavy precipitation at a cold front.
Convection currents form when warm air rises and cold air sinks What causes the warm air to rise and the cold air to sink?
a difference in density
Convection currents form when warm air rises and cold air sinks. What causes the warm air to rise and the cold air to sink?
a deference in density
What is the name of the process when warm molecules rise and cold molecules sink?
You are describing convection.
Do cold dry air masses sink or rise?
cold air sinks as denser - warm air rises
Why doesn't a warm air mass under a cold air mass at a warm front?
Warm air is lighter than cold air, that means that warm air will rise and the cold air will sink.
What type of water will things float down faster in warm or cold?
Cold will sink to the bottom. Hot water will rise to the top.
Why do warm air masses rise and cold air masses sink?
Density. You can figure out the details using the ideal gas law.
An increase in wind causes this current to increase What type of current is it?
Convection is the process that causes warm air to rise and cold air to sink. As such, the winds caused by this process are called convection currents.
Why does got air rise and cold air sink?
Hot air is lighter while cold air is heavier. This results in warm or hot air rising and cool or cold air falls.
Do convection currents result from temperature differences?
When the temperature of a fluid or gas is increased then the molecules of which it is composed vibrate more and take up more room. The part nearest the heat source therefore becomes less dense than the parts of the substance further away. The less dense parts are therefore buoyant and float upwards and are replaced by colder parts which sink - this movement is called convection.
What makes the movement of air?
Differing air temperature causing cold air to sink, and warm air to rise is the main cause of air movement.
How would this cold water cause a density current?
Cold water is more dense than warm water so the cold water has to sink to the bottom which causes a density current.
