The density of air changes with change of temperature, therefore changing it's mass. In other words, the molecules that make up the composition of air move farther apart with a rise in temp and, of course, just the opposite with a decrease in temp. Since temperature changes the mass of air, gravitational pull from the earth will change proportionately.
Yes. Hot air is less dense, and therefore lighter than cold air, so it will rise as cold air will drop. A perfect example of this, is smoking rising to the ceiling in a fire, or smoke rising out of your chimney.
Radiaton- the sun rays conduction putting a pan on a hot stove convection- hot air rising cooling and falling
Convection is a vacuum like effect in which a cyclical balance of hot rising air and cooler falling air maintain a more consistent temperature in an oven or microwave.
A wind is created when there is a pressure difference between two places. Most commonly caused by the sun heating the land, and hot air rising. Thus drawing cooler air in from the coastline, to replace it. When the ocean surface is slightly warmed, some of the water will escape as water vapour, and as this is lighter than air, it rises. This is the cause of cyclones.
hot air rising (less dense air), gravity. aero dynamics dont do much
Cooler denser air is pulled down by gravity but is also pushed down by the rising hot air. This process is called convection.
Both. Since hot air is less dense than cold air, the hot air rises as the cold air falls (i.e. as the cold air displaces the hot air). If you were to dye hot air & then inject it into the center of a room, you would observe the dyed hot air rising. What you may not realize is that gravity draws the (invisible) surrounding dense cold air downwards as it displaces the (visible) less dense dyed hot air. === Previous Posters Answer: Hot air rises
Hot Air Balloons work because of the hot air.The hot air rising stays in the balloon and carries it upward.
It means air that is hot that is going upwards.... What else could it possibly mean?
Rising hot air and water condensing out of that air.
it is a thermal current
Convection. Convection is the process where a fluid (liquid or gas) moves and transports heat due to hotter fluid rising and cooler fluid sinking due to differences in density.
hot air rising cooling and falling :a hot air balloonboiled water or boiling waterhot air popper
Here are 2 examples: - hot airballoon - hot air rising, and cold air falling.