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Why is a hot air balloon a good example of convection?
the hot air from the heater rises forcing the cooler air out. this makes the balloon go up. this is convection
Why is hot water sometimes cloudy?
Hot water is often cloudy due to the presence of dissolved air that is trying to come out of solution - the air dissolved in the water when it was cooler and when the water was heated up the solubility of the air decreases.
Why a balloon inflates when a bottle and balloon system is placed in hot water?
The hot water heats up the air inside the bottle, causing it to expand, forcing some of the air out of the bottle and into the balloon, causing it to inflate. The larger the bottle, the more air that will be pushed into the balloon. The air in the balloon will quickly cool and, since hot air is less dense and therefore rises, the cooler air is forced back into the bottle to be heated up. Eventually the air will be a constant temperature and the balloon will reach the limit of inflation. As the water cools, the air cools and the balloon begins to deflate.
What makes a hot air balloon go up?
ahhh hot air?? hot air rissies sooo when you put hot air nto a balloon it evenually rises
What is the original source of energy that heats air and causes wind?
the sun, it heats air, hot air rises up creating a vacuum for cooler air to blow and take up the vacuum space..sun gets its energy from fusion of helium atoms, they got their energy from the big bang and no one knows what happened before that.
Why is a hot air balloon a good example of convection?
the hot air from the heater rises forcing the cooler air out. this makes the balloon go up. this is convection
Why does a hot air balloon need flame in order to take off?
A Balloon needs hot air to rise, the flame, which is gas burning, heats up the air in the balloon. As Hot air rises above cooler air the balloon takes off.
Why is it cooler at the beach during the day?
Usually a beach has a breeze blowing in from the ocean. This movement of air can cool your skin and make the temperature seem less. I would think that the air is still in the morning and as the sun heats up the air and land, this results in movement of the air.
Why a hot air balloon floats?
a hot air balloon floats because of convection which means that the heat that is from the flame goes up than back down than replaces it with cooler air it goes in a cycle.
How do you prove that hot air rises?
Hot air is less dense (lighter) than colder air, so warmer air will naturally rise above the cooler air.
Does Blowing on a cup of tea make it cooler?
Yes, the food that is hot trades its heat inside with the cooler air around it blowing on it makes this process speed up.
How does a hot air balloon move?
a hot airballon heats up the air inside of it which makes it less dense then the colder air around it causing it to have lift but the only movement that they can really control is up and down the rest depends on the air currents
If you trap air in a balloon and put it into warm air will it float?
If the air in the balloon is cooler than the air around it, it will sink. Hot air balloons go up because they weigh less than the air around them.
Does the air get warmer or cooler when the wind pushes it up over the mountain?
If I Am Not Mistaken Cooler And Cooler.
What weather condition contributes to a thunderstorm?
when the hot air from higher up meets with cooler, lower air and they collide and create thunder & when thunder happens, lightening is created after thunder
What are the advantages and disadvantages of an air cooler?
Some advantages to an air cooler include:Cooler temperaturesComfortSome disadvantages to an air cooler include: Uses electricityNoise pollutionBigger expenseTakes up space
Does air become hotter or cooler as you extend further up a mountain?
It becomes cooler.
