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Any object surrounded by a fluid is buoyed up by a force equal to the weight
of the fluid it displaces.
There's an upward force on a cork in water that's equal to the weight of the
water it displaces.
There's an upward force on a helium balloon that's equal to the weight of the
air it displaces. It so happens that a balloon full of helium weighs less than the
air it displaces, so the upward force on it is greater than its weight.
What else can I help you with?
What makes a child's balloon rise?
Helium. The helium gas in the balloon is lighter than the air outside the balloon.
What happen when a balloon is filled with helium?
When a balloon is filled with helium, it becomes buoyant because helium is lighter than the surrounding air. This causes the balloon to rise and float. The helium gas inside the balloon also increases the pressure, which helps the balloon maintain its shape and stay inflated.
How does helium make a balloon rise when air doesn'?
Helium is lighter than air. So helium balloon rises in air.
Why does a balloon filled with helium rise with a balloon filled with an equal volume of average atmospheric air does not?
Helium is less dense than air, so a balloon filled with helium is lighter than the same volume of air. This buoyancy force allows the helium-filled balloon to rise. On the other hand, a balloon filled with air has the same density as the surrounding air, so there is no buoyant force to make it rise.
What gas makes a balloon rise into the air?
Helium. It is lighter than air and provides buoyancy, causing the balloon to rise.
Why does the balloon rise?
because it contains helium that is lighter than air
Why do helium balloons rise in air?
The helium balloon rises in air because the density of helium inside the balloon is less than that of the surrounded air that is displaced by the balloons volume. So the balloon is lighter than the surrounding air. Ice cubes float in a glass of liquid water for the same reason.
How do air balloons lift off from the ground?
Balloons filled with Helium rise because Helium is less dense than normal air. Hot air balloons lift off the ground because heat rises, and when the balloon is full of air of a higher temperature than its surroundings, the balloon will rise.
Why does a helium balloon float up when it is released?
A helium balloon floats up when released because helium is less dense than air. The helium inside the balloon is lighter than the surrounding air, causing it to create a buoyant force that pushes the balloon upward.
Why do you have to hang onto your helium balloon?
Helium is lighter than air, so it makes the balloon float. If you let go of the balloon, it will float up into the atmosphere because of the difference in density between the helium inside the balloon and the air outside.
If air is denser why does helium pop faster?
Because helium is less denser than air a helium balloon can rise; it is very simple !
Can you inflate a balloon without helium?
You can use air instead of helium, but it will not rise. The reason helium balloons rise is because helium is lighter than air. I am sure other gases can be used also.
