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You can fill balloons with gasses or liquids. Lighter-than-air gasses such as helium are the best if you want the balloon to float upwards. Ordinary air is no use as it is denser than the surrounding air, making the balloon too heavy to float upwards (it will float downwards). However, hot air is less dense than cold air and therefore lighter than air.
All liquids are far too heavy to float, but water balloons are generally intended to be thrown, typically at people. Water balloons are typically made of thinner rubber than air balloons thus when the balloon strikes the person, the balloon's envelope bursts, soaking the person. Water balloons also have more practical uses, such as in Foley catheters. Here, the catheter is inserted into the bladder through the urinal tract, where a balloon is inflated with sterile water to prevent the catheter from falling back out of the bladder. A valve on the end of the catheter allows the balloon to be inflated or deflated for removal.
Two things are water or helium.
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When you insert a balloon into a bottle and you pump air into the balloon why the balloon will not fill up the bottle?
The air in the balloon will have a difficult time expanding to fill the bottle because the bottle is already filled with air at atmospheric pressure, which creates resistance. The pressure inside the balloon needs to overcome the pressure inside the bottle in order for the balloon to expand and fill the bottle.
What happens when you fill a balloon with steam then put it in the refrigerator?
When you fill a balloon with steam and put it in the refrigerator, the steam will condense back into water droplets, causing the balloon to shrink as the gas inside loses volume. The cooling of the gas molecules in the balloon will also decrease their kinetic energy, leading to a decrease in pressure inside the balloon.
What happend to the balloon as you filled it with air?
As you fill a balloon with air, the rubber stretches to accommodate the increased volume of air inside. The pressure inside the balloon increases, causing it to expand and inflate. If you continue to fill it with more air, eventually the rubber may reach its limit and the balloon could burst.
What happens to a balloon when pressure becomes less?
If the pressure around the balloon decreases, the air inside the balloon will expand to fill the available space. This will cause the balloon to inflate or expand.
Is filling a balloon with air an example of displacement?
Yes, when you fill a balloon with air, you are displacing the air that was originally inside the balloon with the new air. This is an example of the principle of displacement.
