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What makes balloons float when they are full of air but not float when they are deflated?
Wiki User
∙ 14y ago
When balloons float they have helium in it. Helium is not air, but a gas. It's lighter than air, which makes it float.
Wiki User
∙ 14y ago
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Why do baloons float in air?
Balloons are full of a gas called 'helium', which is lighter than air. The helium is trapped inside the balloon, that's what makes it float.
What does full time float position mean?
From my knowledge, full time float position means a physical therapist who works full time.
What makes a fruit float or sink?
Density. It depends how dense the fruit is and how much water there is. Suppose you had a 1" by 2" aquarium full of water, and you dropped an apple in it. The apple would float, because it would be less dense then the water.
Can you fill helium balloons with normal air?
No it doesn't have helium. A hot air balloon derives it's lift from heated air, which is less dense and therefore lighter than normal air. A helium balloon derives it's lift from helium, a gas which at normal temperatures is less dense than normal air. So both fly 'lighter than air' but for different reasons.
Why don't normal balloons stay in the sky?
Due to the weight of the balloon. A balloon is merely a capsule full of air so it will fall to the ground as the balloon weighs it down. A helium balloon will rise into the air because helium is less dense than normal air (i.e. it weighs less). The air inside the balloon is the same density as the air outside. The balloon material itself is heavier than air, which causes the balloon to sink. If you decrease the density of the trapped air, such as by heating it or replacing it with hydrogen or helium, the balloon may become even lighter than the balloon material and an equal volume of normal air, in which case the balloon will float or rise.
Why do baloons float in air?
Balloons are full of a gas called 'helium', which is lighter than air. The helium is trapped inside the balloon, that's what makes it float.
Why a lifejacket helps you float?
It's full of air that makes it buoyant
Why there is no life in dead sea n why things n living things float on its surface?
Because it is full of dissolved salt which makes the density of things lighter, and therefore makes them float.
How do you convince your younger ones that there is air all around?
A fan. You might have drop pieces of paper in the path of the fan, and query them as to what makes the paper move. Balloons are also fun--what are the balloons full of, and from where does it come?
What does full time float position mean?
From my knowledge, full time float position means a physical therapist who works full time.
Why do chilly bins float?
yes, bins full of chilli float.... why?
How many balloons are colored red in a bag of 12 balloons?
It's a trick question, the bag was full of green baloons.
How many cows are there in a box full of balloons?
Generally zero.
Do milk containers float?
It depends if the carton is full or not. If the carton is empty, then it will float. If their is milk in the container, then it won't float.
How can a huge ocean liner built of steel float while a penny placed in a glass of water sinks?
Buoyancy In physics, buoyancy is the upward force that keeps things afloat. The net upward buoyancy force is equal to the magnitude of the weight of fluid displaced by the body. This force enables the object to float or at least seem lighter. In simple words, the hollow ship displaces an amount of water that is heavier than the ship. What puzzles me is how an oil tanker that is "full" of heavy oil will float----now that is a real dilema. This is what makes hot-air balloons fly and ships float. Llink with illustrations: http://en.wikipedia.org/wiki/Bouyancy
What makes a fruit float or sink?
Density. It depends how dense the fruit is and how much water there is. Suppose you had a 1" by 2" aquarium full of water, and you dropped an apple in it. The apple would float, because it would be less dense then the water.
The float on your lawnmower is full of petrol?
The float bowl is supposed to be full of fuel. However, if what you are saying is that the fuel doesn't stop flowing into the float bowl and causes the engine to flood, then the problem lies in the needle valve that is controlled by the float. When the float drops because the engine is "pulling" fuel, the valve will open to allow more fuel into the bowl. As the bowl fills up, the float will rise and close the valve to cut off the fuel supply. The other interpretation I can make of your question is that the float itself is full of fuel. If that's the case, the float is damaged and must be replaced.
