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Why does a sealed gas balloon expand when it is brought from ground level to the top of a mountain?
The outside air pressure keeps the air molecules inside the balloon from expanding the balloon freely as far as it can go. Air molecules in the atmosphere are constantly colliding, and the collisions of outside air molecules with the surface of the balloon keep it from expanding further (countering the tendency of air molecules inside the balloon to push the balloon's rubber outward). As you go up a mountain, the air becomes thinner as the air pressure decreases; that is, there are fewer air molecules in a given volume of atmosphere. Thus, fewer outside air molecules are present to collide with the balloon's outer surface and the molecules inside have less resistance when they hit the inner surface of the balloon, forcing it outward and increasing the volume of the balloon.
As you can see, there is no increase of gas in the balloon, but the decrease in atmospheric pressure allows the existing gas molecules inside the balloon to overcome the outside pressure and expand its volume.
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What happens when you drop a balloon?
When you drop a balloon, gravity pulls it down towards the ground. As it falls, the air inside the balloon is pushed out through the opening, causing the balloon to deflate and eventually land on the ground.
Why does a balloon drop to the ground?
A balloon drops to the ground because of gravity, which is a force pulling objects towards the Earth's center. The air inside the balloon is less dense than the surrounding air, causing it to be less buoyant and leading the balloon to fall due to gravity.
Why balloon burst when it goes high?
This is because there is always the same amount of air inside the balloon, providing the same amount of outwards force. Here on the ground, that outwards force is balanced by the air outside the balloon pushing on it. Higher in the atmosphere, however, there is less air, and therefore less force. Thus as the balloon ascends, there is a greater force pushing out than pushing in, and the balloon bursts.
Can a balloon blow itself up?
A balloon can't blow itself up - it can only respond to internal and external forces. For example, if the pressure inside the balloon is greater than the pressure outside the balloon, it will inflate; if the pressure is greater than the balloon is able to stretch, it blows up. Balloons that are filled on the ground, for example, and then released into the sky may eventually blow up as they reach altitudes with lower air pressure.
What is a barrage balloon?
A barrage balloon is a large helium-filled balloon that is tethered to the ground with steel cables. It is used as a defensive measure to deter low-flying aircraft from attacking ground targets. The cables are intended to damage or destroy the aircraft if they come into contact with them.
A weather balloon is brought to the ground sea level from an altitude of 4km when it reaches the ground the balloon is its original size?
The question is not clear but i think it will be the same original size as it was initially.
What happens when a balloon floats up into the atmosphere?
As the balloon ascends into the atmosphere, the air pressure surrounding it decreases, causing the gas inside the balloon to expand. Eventually, the gas inside the balloon will expand so much that the balloon will burst or pop. Pieces of the balloon will then fall back down to the ground.
When do maximum ground level concentrations of pollutants occur in mountain valleys?
Maximum ground level concentrations occur a few hours after sunrise when inversion layers are broken up and brought to the ground.
What happens when you drop a balloon?
When you drop a balloon, gravity pulls it down towards the ground. As it falls, the air inside the balloon is pushed out through the opening, causing the balloon to deflate and eventually land on the ground.
A partially inflated balloon is released from the ground level and becomes larger as it rises in the atmosphere?
It is true that it will become larger as it risses in the atmosphere. This is because the pressure surrounding the balloon decreases, so the pressure inside the balloon wants to equalise with the outside pressure. This causes the balloon to expand as the inside air is trying to get out. That's why things get 'sucked out' of a plane if there if someone opens the door at 30,000 feet, the cabin pressure is trying to equalise by removing the objects and air inside it.
Why are weather balloons partially infated before they're released into the atmosphere?
As you rise in elevation, the pressure around you decreases. This lower pressure would cause the balloon to expand, and burst if it was inflated to much originally. By starting it off only partly filled, it will expand to a normal size and not explode.
Explain why a helium weather balloon expands as it rises in the air Assume that the temperature remains constant?
When the helium balloon starts gaining height, the pressure decreases and as the gas molecules are very freely movable (higher than the normal). They move apart from each other in the mean while they make the balloon to expand. The decrease in atmospheric pressure relative to pressure inside the balloon causes it to expand.
How do you get off a hot air balloon?
You climb out when the balloon lands on the ground and the basket is secure.
Where do birthday balloons go when they are released in the air?
With helium filled balloons, they rise upwards as the gas inside is of a lower density than the atmosphere around them. The balloon will continue to rise and the gas inside it will expand as the atmospheric pressure decreases with increasing altitude. Eventually, the gas inside the balloon will expand enough to burst the balloon and the balloon will fall back to the ground. When and where this happens depends on weather conditions, air temperature, the rubber used in the balloon, etc.
Why does a balloon drop to the ground?
A balloon drops to the ground because of gravity, which is a force pulling objects towards the Earth's center. The air inside the balloon is less dense than the surrounding air, causing it to be less buoyant and leading the balloon to fall due to gravity.
Why balloon burst when it goes high?
This is because there is always the same amount of air inside the balloon, providing the same amount of outwards force. Here on the ground, that outwards force is balanced by the air outside the balloon pushing on it. Higher in the atmosphere, however, there is less air, and therefore less force. Thus as the balloon ascends, there is a greater force pushing out than pushing in, and the balloon bursts.
Can a balloon blow itself up?
A balloon can't blow itself up - it can only respond to internal and external forces. For example, if the pressure inside the balloon is greater than the pressure outside the balloon, it will inflate; if the pressure is greater than the balloon is able to stretch, it blows up. Balloons that are filled on the ground, for example, and then released into the sky may eventually blow up as they reach altitudes with lower air pressure.
