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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.
How does heat cause a hot air balloon to rise?
When air inside the balloon is heated, it becomes less dense and lighter than the surrounding cooler air. This lighter air creates a buoyant force that causes the balloon to rise. As the air inside cools down, the balloon will begin to descend.
What happens to the air molecules inside a hot air balloon?
When the air inside a hot air balloon is heated, the molecules gain energy and begin to move faster, causing the air to expand and become less dense than the surrounding cooler air. This lower density air in the balloon then creates lift, allowing the balloon 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 a balloon float?
The gas helium is less dense than the nitrogen-oxygen mix of atmospheric air. So a balloon filled to the same pressure (or even higher) will have a lower density than the air around it, which will displace it (flow under it), forcing it upward. The balloon will rise until the combined weight of the helium and the balloon are the same average weight (density) as the surrounding air. Long before it reaches that altitude, a normal balloon will begin to expand and will usually pop (at an altitude of a few hundred to a few thousand feet).Helium molecules are lighter than most air molecules in the atmosphere (mostly nitrogen and oxygen) therefore they are prone to rise while heavier molecules move downward.
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 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 hot air balloon begin to rise when heated air is trapped inside it?
When the air inside the balloon is heated, it expands and becomes less dense than the surrounding cooler air. This makes the balloon buoyant, causing it to rise. The temperature difference between the air inside the balloon and the air outside creates a pressure difference that results in lift.
How does heat cause a hot air balloon to rise?
When air inside the balloon is heated, it becomes less dense and lighter than the surrounding cooler air. This lighter air creates a buoyant force that causes the balloon to rise. As the air inside cools down, the balloon will begin to descend.
How heat affects the air inside the hot air balloon?
Heat causes the air inside a hot air balloon to expand, decreasing its density compared to the cooler air outside. This difference in density creates lift, allowing the balloon to rise. As the temperature of the air inside the balloon increases, it becomes lighter than the surrounding cooler air, enabling the balloon to ascend. Conversely, if the air cools down, the balloon will lose lift and begin to descend.
What happens to the air molecules inside a hot air balloon?
When the air inside a hot air balloon is heated, the molecules gain energy and begin to move faster, causing the air to expand and become less dense than the surrounding cooler air. This lower density air in the balloon then creates lift, allowing the balloon to rise.
Why does helium balloons pop in the hot sun and what pressure is acting on it?
Helium expands in the heat, causing the gas inside the balloon to increase in pressure. As the pressure inside the balloon becomes greater than the strength of the balloon's material, it can pop. The pressure acting on the balloon is the sum of the internal pressure of the expanding helium gas and the external atmospheric pressure.
What would happen if the air inside a hot air balloon cooled down?
If the air inside a hot air balloon cooled down, the density of the air would increase, causing the balloon to lose its buoyancy. As a result, the balloon would begin to descend. To maintain altitude, the pilot would need to heat the air again or release some weight from the balloon. Without intervention, the balloon would eventually land as the cooler air becomes less capable of supporting it.
What happens to a hot air balloon when the burner is turned off?
When the burner is turned off, the air inside the hot air balloon starts to cool down. As the air cools, the balloon loses lift and begins to slowly descend back to the ground. Without the burner heating the air inside the balloon, it will eventually land.
What might happen to a hot air balloon if the air cooled down?
If the air around a hot air balloon cools down, the air inside the balloon will also cool, causing it to lose some of its buoyancy. Since hot air is less dense than cooler air, the balloon may begin to descend as the difference in density decreases. To maintain altitude, the pilot would need to heat the air inside the balloon again. If not, the balloon could gradually descend to the ground.
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.
What are some angry expressions that begin with the letter A?
As useful as a lead balloon
