Answer :
When comparing the flotation and sinking of a hot air balloon, there are key differences to consider:
1. Flotation of Hot Air Balloon:
- A hot air balloon floats due to the principle of buoyancy, which states that objects will float if they displace an amount of air equal to their own weight.
- In the case of a hot air balloon, the heated air inside the balloon is less dense than the cooler air outside, causing the balloon to rise.
- The burner at the bottom of the balloon heats the air inside, making it less dense and creating a lift force that allows the balloon to float in the air.
- As long as the air inside the balloon remains hotter than the surrounding air, the balloon will continue to float.
2. Sinking of Hot Air Balloon:
- A hot air balloon sinks when the air inside the balloon cools down to a temperature lower than the surrounding air.
- When the air inside the balloon cools, it becomes denser and heavier than the surrounding air, causing the balloon to descend.
- To prevent sinking, the burner is used to heat the air again and create lift, allowing the balloon to rise back up.
In summary, the flotation of a hot air balloon is enabled by the principle of buoyancy and the heating of air inside the balloon, while sinking occurs when the air cools down, becoming denser and heavier than the surrounding air. By regulating the temperature of the air inside the balloon, the pilot can control the balloon's altitude and maintain flight.
1. Flotation of Hot Air Balloon:
- A hot air balloon floats due to the principle of buoyancy, which states that objects will float if they displace an amount of air equal to their own weight.
- In the case of a hot air balloon, the heated air inside the balloon is less dense than the cooler air outside, causing the balloon to rise.
- The burner at the bottom of the balloon heats the air inside, making it less dense and creating a lift force that allows the balloon to float in the air.
- As long as the air inside the balloon remains hotter than the surrounding air, the balloon will continue to float.
2. Sinking of Hot Air Balloon:
- A hot air balloon sinks when the air inside the balloon cools down to a temperature lower than the surrounding air.
- When the air inside the balloon cools, it becomes denser and heavier than the surrounding air, causing the balloon to descend.
- To prevent sinking, the burner is used to heat the air again and create lift, allowing the balloon to rise back up.
In summary, the flotation of a hot air balloon is enabled by the principle of buoyancy and the heating of air inside the balloon, while sinking occurs when the air cools down, becoming denser and heavier than the surrounding air. By regulating the temperature of the air inside the balloon, the pilot can control the balloon's altitude and maintain flight.
