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Why does a hot air balloon begin to rise when heated air is trapped inside it?
Wiki User
∙ 15y ago
The hot air makes it bouyant because it's less dense than the colder air around it. Also it is bouyed up by a force equal to the air it displaces.
Wiki User
∙ 15y ago
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What happens to a hot air balloon when the burner is turned off?
the particles begin to slow down and relax releasing the lift of the balloon at a slow rate which is why its safe to ride.
Why is the hot air in a hot air balloon less dense then air outside of it?
When air is heated, more kenitic energy is transfered to the airs particles. The particles then begin to move and vibrate more, and expand outward. This produces hot air, which rises because it has a lower density (more spread out particles) then the cooler air that surrounds it. Thus, it rises.
Why do hot air balloons rise?
Hot air is less dense than cold air, thus hot air rises in cold air. Hot air balloons trap the hot air, thus creating an upward force at the top of the balloon. With sufficient mass, the upward force upon the balloon can overcome gravity, lifting both the balloon and the burner (used to heat the air) up off the ground. To lift people you need a much larger envelope to hold the required mass of hot air to overcome the gravitational pull. The air in the balloon is heated by a burner to make it expand (become less dense). They have a lever that they pull that releases fire.The fire makes hot air and it hits the top of the hot air balloon that makes it rise. Helium-filled balloons are more commonly known as blimps (airships) which do not use burners because helium is lighter-than-air to begin with. Helium replaced hydrogen which was originally used in blimps. Using burners on hydrogen would have been foolhardy at best (refer to the Hindenburg disaster).
What are facts about protostars?
1.Nebula ( plural for nebulae) are the birth place of stars. 2. If a critical temperature in the core of a protostar is not reached, it ends up a brown dwarf. 3. Stars begin their lives inside molecular clouds.
What do the largest clumps surrounding the protosun begin to form?
what do the largest clumps surrounding the protosun to begin to form
Why doesn't an inflated balloon shrink when heated?
Because as the balloon is heated, the gases on the inside of the balloon begin to expand and press out on the walls of balloon. If a balloon is refridgerated, the opposite is true: the gases on the inside of the balloon will begin to contract, causing the balloon to shrink.
Why does a gas burner in a balloon begin to rise when heated air is trappd inside the balloon?
The hot air from the gas burner rises and enters the balloon's envelope. Once there is enough hot air trapped, the whole balloon will begin to lift off the floor. This is due entirely to the fact that hot air rises.
Why does this device begin to rise when hated air is trapped inside the balloon?
Hot air rises, and the air is hotter than the air outside the balloon causing it to rise.
What is the difference between a full and an empty balloon?
A full balloon contains more gas than an empty balloon (even an empty balloon contains a little air). Therefore a full balloon is heavier than an empty balloon (assuming the balloons are the same weight to begin with). However, if filled with a lighter-than-air gas, such as helium, the full balloon will defy gravity due to its increased buoyancy. The only other difference is that the skin of a full balloon will be stretched and will therefore be much thinner than the skin of an empty balloon. This stretching increases the pressure upon the gas contained therein, therefore the gas is compressed inside the balloon.
Why does hot air rise up to the atmosphere?
When air is heated, more kenitic energy is transfered to the airs particles. The particles then begin to move and vibrate more, and expand outward. This produces hot air, which rises because it has a lower density (more spread out particles) then the cooler air that surrounds it. Thus, it rises, with the hot air balloon in tow. But, when a hot air balloon gets very high, the air that surrounds it gets less desnse its self. The hot air balloon can only get so high that the air inside is lighter then its surrounding air, otherwise it will not rise.
What are some angry expressions that begin with the letter A?
As useful as a lead balloon
In which city does the annual hot-air balloon stampede begin?
Walla walla
What sorts of spots are there that begin with m?
microwave (foot spattered when heated)
Why would heating a gas in the air balloon make the balloon rise?
By radiating energy, the heat excites air molecules to expand, within the confined space of the balloon's lower density and over all mass, causing the whole thing including the container to float.Hot air is lighter (less dense) than cool air, so it rises.Because the cool air is denser it occupies less volume. The cooler, denser air will slide down beneath the warm air mass, thus providing lift to the balloon.If you heat a gas such as air, it will expand - more volume for the same mass. This means it will be less dense - less kilograms per cubic meter for example. Being less dense than the surrounding air, it will tend to float - but of course, the upwards force must be enough to compensate the balloon's weight.Because hot air rises. Period. Nothing fancy. The air in the balloon would be hotter than the air around it, so it will rise.Hot air is less dense than colder air, therefore the hot air balloon will float on the cooler air surrounding it.
How can you do an experiment on how air makes force when air is compressed?
Begin by placing a semi inflated balloon on the end of an empty soda plastic soda bottle. Then squeeze the bottle and watch the balloon inflate slightly, this demonstrates when the air is compressed inside the soda bottle it creates pressure to fill the balloon and push it up. This is not only a great way to show this property of air to somebody, its cheap for a small class experiment.
What happens to a hot air balloon when the burner is turned off?
the particles begin to slow down and relax releasing the lift of the balloon at a slow rate which is why its safe to ride.
How does what happens to the particles in a substance during melting differ from what happens during freezing?
When something is heated the particles inside it begin to move faster and faster and that causes the heat, when something is frozen the opposite occurs the particles inside it move slower and slower and probably stop moving all together
