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- As air molecules fly around inside the bottle they bump into each other, as well as the inside surface of the bottle. All this bumping creates a pushing force that we call air pressure. This is what makes a balloon inflate when you blow air into it. The more air you add, the more pressure it creates.
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Nov 7, 2019 · What do you expect to happen to the balloons if you blow air in between them? Make sure that the balloons are still. Then blow into the paper-towel tube very slowly. Try to produce a steady air...
- Introduction
- Materials
- What Happened?
- Digging Deeper
- For Further Exploration
- Related Resources
Have you ever seen pictures or videos of a roof being blown off a house during a hurricane or tornado? You might be surprised to hear that the roof is actually not pushed off by the strong winds but instead by the air inside the house! This can be explained by Bernoulli's principle, which states that fast-moving fluids or air, such as strong winds,...
Two balloons of the same sizeString (about 60 cm length)ScissorsTapeDid you notice that both balloons magically moved towards each other without being touched at all? The effect which you observed is a great demonstration of Bernoulli's principle. As long as both balloons just dangle from the door frame, the air around them in each direction is static. This means the air exerts the same amount of pressure onto each...
Daniel Bernoulli was a Swiss scientist who in the 18th century studied how fluids behave when they are in motion. When experimenting with fluids flowing through an hour-glass shaped tube, he made a discovery. He realized that fast-moving fluids produce less pressure and slow-moving fluids produce greater pressure. His discovery became known as the ...
Repeat the same experiment but vary the size of your paper tube. Do smaller diameter tubes, such as a straw, have the same effect? Do you need the paper tube at all?Find out if you can still make the balloons move if they are further apart from each other. Change the distance between both balloons and test if it affects your results. Do you find a maximum or m...Instead of balloons, try using ping pong balls or other objects in this experiment. Do you still see the same effect?Links
1. NSTA: Bernoulli's Principle 2. MIT Department of Aeronautics and Astronautics: Theory of Flight 3. DisasterSafety.org: Roof Blow Off
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Jun 5, 2014 · Gases, such as the air or helium inside a balloon, take the shape of the containers they’re in. They spread out so that the space is filled up evenly with gas molecules. The gas molecules are...
Can you predict what happens when the taps are opened so that air can move between the balloons? This problem was posed by American physicist and television personality Julius Sumner Miller in the American Journal of Physics in 1952 [1], and has been widely discussed ever since.
Sep 21, 2022 · The pressure inside the hot air balloon is affected by temperature. As the molecules heat up, they move faster and strike the inside wall of the balloon harder. This increased motion of the gas particles increases the force on an area of the balloon, producing a rise in the pressure.
Jun 19, 2022 · What happens when you blow up a balloon? You are clearly adding air into the system. As you do this, the balloon gets bigger, so its volume increases. What about the temperature...
Jun 9, 2019 · Blowing into a balloon is harder than just blowing into the air, because it takes higher air pressure to stretch the rubber. once the balloon is tied the stretched rubber continues to squeeze the air inside, so inner air pressure stays higher than outer air pressure.
