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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.
What else can I help you with?
Does hot air rise?
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.
What are some examples of conduction radiation and convection?
Radiaton- the sun rays conduction putting a pan on a hot stove convection- hot air rising cooling and falling
What is the process of convection with reference to some equipments used in the home?
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.
Changes in temperature that result from the cooling of rising air or the warming of sinking air are?
Adiabatic
What is wind made out of?
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.
What forces are acting when a hot air balloon is landing?
hot air rising (less dense air), gravity. aero dynamics dont do much
Cooler denser air is pulled down by?
Cooler denser air is pulled down by gravity but is also pushed down by the rising hot air. This process is called convection.
Why doesn't rising air just keep rising all the way into space?
Gravity
What causes a cumulus cloud?
Rising hot air and water condensing out of that air.
What is the name of a rising current of hot air?
it is a thermal current
Some examples of convection?
hot air rising cooling and falling :a hot air balloonboiled water or boiling waterhot air popper
What are five examples of convection?
Here are 2 examples: - hot airballoon - hot air rising, and cold air falling.
Does hot air rise?
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.
How is rising air produced in Pakistan by convection?
As in other hot countries .
What are the advantage of a hot air balloon?
the mechanical advantage of a hot air balloon is this that we can use it in many good ways like it is for individual flight for every one, and can be use at any time but it depends on the air resistance + gravity because if the gravity is low the hot air balloon would fly far and far in the air and if the gravity is hifgh it would unable to fly and in air resistance if the air is high it would be difficult for a hot air balloon to fly and if air resistance is low it would be difficult for hot air balloon to fly in the air
Why flames of a fire rise even though gravity pull thing downwards?
Gravity pulls denser air down, this pushes the lighter hot air, from the fire, up.Gravity pulls denser air down, this pushes the lighter hot air, from the fire, up.Gravity pulls denser air down, this pushes the lighter hot air, from the fire, up.Gravity pulls denser air down, this pushes the lighter hot air, from the fire, up.
What force brings a hot air balloon to earth after the hot air is let out?
Erm.. no.. i believe its Buoyancy... this force causes u the hot air balloon to rise.. not Gravity..
