Why do hot air balloons rise up?

Why do hot air balloons rise up?
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1 Answer

Answer :

Since hot gases rose up in air, so hot air in balloon causes it to rise up.
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Related questions

When a vessel containing a liquid is heated, the level of liquid initially falls and then rises up. Why does it happen so? OR Describe the irregular expansion of liquid.

Description : When a vessel containing a liquid is heated, the level of liquid initially falls and then rises up. Why does it happen so? OR Describe the irregular expansion of liquid.

Last Answer : On heating the liquid water from 0 degree C to 4 degree C, it contracts so the level of liquid initially falls. But after 4 degree C it expands so liquid rises up.

Describe a simple experiment to study the thermal expansion of Gases.

Description : Describe a simple experiment to study the thermal expansion of Gases.

Last Answer : I. Take an empty flask and fit a cork into the mouth of the flask. II. Limb of the U shaped glass tube through the cork. III. Clamp the flask in a stand as shown in fig. IV. Dip the ... and produce bubbles in water. X. On cooling flask contracts and water level is pulled up in the glass tube.

Explain the expansion of liquids and with the help of an experiment.

Description : Explain the expansion of liquids and with the help of an experiment.

Last Answer : I. Take an empty flask and fit a cork into its mouth. Pass short limb of U-shape glass tube through it. II. Clamp the flask in a stand. III. Dip the long limb of U-shaped tube in the water ... . On cooling, air in the flask contracts, so suction is created which pulls the water in the glass tube up.

Describe the effects of expansion and contraction of solids.

Description : Describe the effects of expansion and contraction of solids.

Last Answer : I. In hot summer, concrete in roads expands and road surface crack. II. Two sections of railway track are laid with gaps. If there are no gaps, then they may be de-shaped due to expansion ... gap is also present at this end. So that it can move forward and backward during expansion and contraction.

Explain the damages which are caused by expansion or contraction by giving two examples.

Description : Explain the damages which are caused by expansion or contraction by giving two examples.

Last Answer : I. In hot summer, the concrete used in roads expands. If no space is provided for its expansion, then road surface crack. II. Two sections of railway track are laid with gaps. If there are no gaps, then they may be de-shaped due to expansion in summer.

What is thermometer? How it works?

Description : What is thermometer? How it works?

Last Answer : A thermometer is a device used to measure the temperature. When some hot object touch the bulb of the thermometer, the liquid inside the narrow tube expands and rises up and we can measure the temperature by reading scale.

Explain the peculiar (strange) behavior of water during contraction and expansion.

Description : Explain the peculiar (strange) behavior of water during contraction and expansion.

Last Answer : On heating the liquid water from 0 0C to 4 0C, it contracts and its volume decreases while its density increases. On cooling from 4 0C to 0 0C it expands, its volume increases and density decreases.

Demonstrate how a bimetallic strip works in a thermostat.

Description : Demonstrate how a bimetallic strip works in a thermostat.

Last Answer : In electric iron, when current passes through heating element, it becomes hot. The connected bimetallic strip also heats up. On getting hot, it bends and is disconnected from heating element so, circuit breaks and switches off the electric iron.

What is Rivet and Riveting?

Description : What is Rivet and Riveting?

Last Answer : A rivet is a small, cylindrical and smooth shaft whose one end is swollen (called Head) while the other end is flat. Hot rivets are used to join the metal plates. The process in which two metal plates are joined together by means of rivets is called riveting.

What is thermal expansion? Explain it with the help of experiment.

Description : What is thermal expansion? Explain it with the help of experiment.

Last Answer : The expansion of material objects on heating is called thermal expansion. I. Take a metallic sphere which can pass easily through a ring. II. Remove the sphere out of the ring. III. Now heat the ... expansion due to heating. V. On cooling the sphere, it attracts and passes through the ring again.

Why do gases expand faster than liquids and solids?

Description : Why do gases expand faster than liquids and solids?

Last Answer : Because the particles of gases are widely disturbed i.e. their particles are far apart from each other and they free to move. Other

Why gaps are left between two sections of a railway track?

Description : Why gaps are left between two sections of a railway track?

Last Answer : The gaps allow the expansion and contraction of rails during summer and winter season.

Why one end of the iron girders is placed on rollers in construction of bridges?

Description : Why one end of the iron girders is placed on rollers in construction of bridges?

Last Answer : One end of iron girders is placed on the rollers along with a gap at this end so that girder can move forward and backward during expansion or contraction.

Why is water not used instead of mercury in thermometers?

Description : Why is water not used instead of mercury in thermometers?

Last Answer : Because Mercury has high coefficient of expansion per unit rise in temperature

Write down the effects of heating and cooling on gases

Description : Write down the effects of heating and cooling on gases

Last Answer : Gas expand on heating and contract on cooling

Write down the effects of heating and cooling on solids

Description : Write down the effects of heating and cooling on solids

Last Answer : Solid expand on heating and contract on cooling

Were hot air balloons ever used as a cargo transportation solution?

Description : Were hot air balloons ever used as a cargo transportation solution?

Last Answer : Ever? Maybe. But it's a very problematic way to carry something from place to place. if you really mean an un-powered and un-tethered hot air balloon, as those are dependent on ... -balloon-transport-company/worldwide/ They guarantee they drop your package within 100 meters of your desired target.

How do people navigate hot air balloons?

Description : How do people navigate hot air balloons?

Last Answer : You can only choose to climb or dive, by releasing hot air from the balloon, or warm the air in the balloon to climb. For the direction, all you can do is to let the wind carry you.

Why do the hot air balloons fly high?

Description : Why do the hot air balloons fly high?

Last Answer : Why do the hot air balloons fly high?

Hot air balloons float in air because of the low density of the air inside the balloon. Explain this with the help of an appropriate gas law.

Description : Hot air balloons float in air because of the low density of the air inside the balloon. Explain this with the help of an appropriate gas law.

Last Answer : Hot air balloons float in air because of the low density of the air inside the balloon. Explain this with the help of an appropriate gas law.

How does one control the movement of hot air balloons?

Description : How does one control the movement of hot air balloons?

Last Answer : Hot air balloons rise into the sky because of the fundamental property of the hot air filled in them; air when heated becomes lighter (less denser) than the surrounding cold air. The balloon ... air balloon enthusiasts venture out after studying the weather and making sure there are no strong winds.

Give reason: a) Soda bottles are often labelled “store in cool and dry place”. b) Balloons pops out during hot summer more frequently than in winter. c) During winter football filled with air reduces to its original size when taken outdoors.

Description : Give reason: a) Soda bottles are often labelled “store in cool and dry place”. b) Balloons pops out during hot summer more frequently than in winter. c) During winter football filled with air reduces to its original size when taken outdoors.

Last Answer : a) Soda bottles are often labelled store in cool and dry place . The carbon dioxide filled in soda bottles on exposure to heat, expands because the gas inside the bottle expands as temperature ... . When football is taken out, its temperature decreases so the volume to gas filled also decreases.

(2) it is lighter than air Explanation: Helium is the second lightest element and is the second most abundant element in the observable universe, being present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined. A well-known but minor use is as a lifting gas in balloons and airships

Description : (2) it is lighter than air Explanation: Helium is the second lightest element and is the second most abundant element in the observable universe, being present at about 24% of the total elemental mass ... elements combined. A well-known but minor use is as a lifting gas in balloons and airships

Last Answer : Ammonial is a mixture of – (1) aluminium powder and ammonium nitrate (2) aluminium powder and ammonium chloride (3) aluminium powder and ammonium sulphate (4) aluminium powder and potassium nitrate

The gas used for filling weather balloons is – (1) helium (2) hydrogen (3) air (4) nitrogen

Description : The gas used for filling weather balloons is – (1) helium (2) hydrogen (3) air (4) nitrogen

Last Answer : (1) helium Explanation: A balloon is an inflatable flexible bag filled with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. Modern balloons can be made from ... others are used for practical purposes such as meteorology, medical treatment, military defense, or transportation.

Which gas is preferred for filling the weather balloons and air ships?

Description : Which gas is preferred for filling the weather balloons and air ships?

Last Answer : Helium

Which gas is preferred for filling the weather balloons and air ships?

Description : Which gas is preferred for filling the weather balloons and air ships?

Last Answer : Helium

The gas used for filling weather balloons is (1) helium (2) hydrogen (3) air (4) nitrogen

Description : The gas used for filling weather balloons is (1) helium (2) hydrogen (3) air (4) nitrogen

Last Answer : helium

How do I blow up one of those skinny long balloons?

Description : How do I blow up one of those skinny long balloons?

Last Answer : answer:First, stretch it out by grabbing the ends and pulling it out to its full lenght a couple of times. This relaxes the latex so it won't fight you so much. Then don't try to start the ... . Once that first mouthful off air has begun opening up the balloon, your lungs can take it from there.

How do you blow up one of those long skinny balloons?

Description : How do you blow up one of those long skinny balloons?

Last Answer : There always seems to be a lot of stretching of them going on….don’t know if it actually helps, though.

Balloons, what's not to love?

Description : Balloons, what's not to love?

Last Answer : Pop was always my least favorite cereal dwarf.

How many balloons would make you happy and in what colors?

Description : How many balloons would make you happy and in what colors?

Last Answer : One red balloon would be nice,but a bunch in all the primary colors would be nicer:...just enough to launch my lawn chair and I for a quick tour of the neighborhood.;) I did cry once when I let go of a ... .I was 28,I mean 3 years old and was told to snap out of it. They still make me happy :)

Where do helium filled balloons go?

Description : Where do helium filled balloons go?

Last Answer : answer: First of all, only one hundred percent biodegradable latex balloons are used in mass releases. Research showed that these balloons degrade about as quickly as an oak leaf under similar conditions. ... to say whether the knot stays intact when a helium balloon explodes way up there. Source

Where can I buy/rent helium for balloons?

Description : Where can I buy/rent helium for balloons?

Last Answer : Most party places rent tanks. Use the phone book.

Why are weather balloons filled with Helium?

Description : Why are weather balloons filled with Helium?

Last Answer : Hydrogen atoms are much smaller than helium atoms, so they will permeate the latex much quicker. This will lead to the balloon coming down much sooner.

What type of music are balloons scared of? -Riddles

Description : What type of music are balloons scared of? -Riddles

Last Answer : Pop Music!

David is throwing Robert a surprise birthday party but he has to stay within his budget. He spent half of his money plus $2.00 on the cake. Half of what he had left plus $2.00 was spent on balloons and streamers. Then he spent half of what he had left plus $1.00 on candy. Now he is out of money, how much did he start with? -Riddles

Description : David is throwing Robert a surprise birthday party but he has to stay within his budget. He spent half of his money plus $2.00 on the cake. Half of what he had left plus $2.00 was spent on balloons and ... had left plus $1.00 on candy. Now he is out of money, how much did he start with? -Riddles

Last Answer : This one is best solved working backwards, the last part David spent half of what was left plus $1.00 on candy and then was out of money. That means he must have spent $2.00 on Candy as $1.00 was ... logic backwards: $2.00 on candy $6.00 on Balloons and Streamers $12.00 on the cake Total of $20.00.

Robert and David were preparing to have a water balloon fight. 'No Fair' cried Robert, 'You have 3 times as many as I do!' David said 'Fine!' and gave Robert 10 more balloons. 'Still not fair!' argued Robert, 'You still have twice as many as I do.' How many more balloons must David give Robert for them to have the same number? -Riddles

Description : Robert and David were preparing to have a water balloon fight. 'No Fair' cried Robert, 'You have 3 times as many as I do!' David said 'Fine!' and gave Robert 10 more balloons. 'Still not fair!' ... as I do.' How many more balloons must David give Robert for them to have the same number? -Riddles

Last Answer : David must give Robert another 20 water balloons, giving them each 60. Robert started with 30 water balloons and David with 90.

Balloons are filled with which gas? -Do You Know?

Description : Balloons are filled with which gas? -Do You Know?

Last Answer : answer:

What gas is used in balloons ?

Description : What gas is used in balloons ?

Last Answer : Helium gas is used in balloons.

How long do you think bitcoin balloons last?

Description : How much longer do you think this exchange rate can go?

Last Answer : This is no longer a balloon. He once understood a lot, now the exchange rate has gone beyond that. It can go up to 50-100 thousand.

Where Can I get Helium gas for Balloons?

Description : Where Can I get Helium gas for Balloons?

Last Answer : You can buy helium at Amazon or flipcart. You can not make He at home He is a noble gas you may know . It is extracted from natural gas during the extraction of natural gas from petroleum wells.

Can I reuse helium Balloons?

Description : Can I reuse helium Balloons?

Last Answer : Yes, if they are made of foil they are reusable and recycled. You can take them to a balloon shop or florist to be refilled with helium. You can recycle them if you have no need to reuse. In all cases here you are the winner. Yes, helium balloons can be reused.

What will Happen If I inhale Helium gas from balloons?

Description : What will Happen If I inhale Helium gas from balloons?

Last Answer : If you take one hit you still have oxygen in your lungs, so you live a while longer. If you take a second hit, you have depleted the oxygen in your lungs. At some point you pass out from lack of ... take one hit at a time. But inhaling nitrogen is different: you can pass out with a single breath.

What are some interesting facts about Helium Balloons?

Description : What are some interesting facts about Helium Balloons?

Last Answer : If you are in a car and the car turns a corner, the balloon goes to the INSIDE of the curve. That means if the car goes right the balloon goes right, but you lean left. That is because the ... are thin. Storage bags are thicker, and freezer bags are thickest to keep oxygen out for weeks or months.

Which gas is used to inflate balloons?

Description : Which gas is used to inflate balloons?

Last Answer : Usually air is used. Helium is probably the best choice of the gases since several others can be dangerous to use. But, others such as neon, nitrogen and even methane could be used.

What happened with balloons?

Description : What happened with balloons?

Last Answer : Need answer

What to mix with helium for balloons?

Description : What to mix with helium for balloons?

Last Answer : Feel Free to Answer

What is the expression for 91 balloons and 7 min?

Description : What is the expression for 91 balloons and 7 min?

Last Answer : It could be 91B + 7M.

What layer do weather balloons reach before they burst?

Description : What layer do weather balloons reach before they burst?

Last Answer : What is the answer ?

What are weather balloons used for and how high do weather balloons fly?

Description : What are weather balloons used for and how high do weather balloons fly?

Last Answer : Weather balloons are used to send back information onatmospheric pressure, temperature, humidity and wind speed at highaltitudes.They usually fly no higher than 121,000 ft (23 miles). But, onewas known to reach a height of 173,900 ft (33 miles).