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Balloons start to lose altitude when the air inside the envelope cools off. In order to keep the balloon aloft the balloon pilot uses a burner to heat up the gases inside.
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What force makes things fall downwards?
The force that makes things pull downwards is called "gravity". That's why we don't float when we jump.
How does hot and cold air have an effect on an balloon?
If there is warm air in the balloon, cooler air makes the balloon rise and if there is cold air in the balloon warmer air makes the balloon fall.
What makes the car to drift?
Visit this link: http://www.wikihow.com/Drift-a-Car
How does thermal expansion make a hot air balloon rise?
It rises because when thermal engery is in the balloon it makes an expansion that makes the balloon fly
How does thermal expansion make a hot-air balloon rise?
It rises because when thermal engery is in the balloon it makes an expansion that makes the balloon fly
What makes an helium balloon go up and what makes an helium balloon go down?
a helium balloon is forced upward by buoyancy. a object is forced upward by a force equal to the weight of the fluid it displaces. this also applies to gases. the gas helium is lighter than average atmospheric air, that is that equal volumes of atmospheric air and helium do not weigh the same. This means that the volume displaced by the balloon is heavier than the balloon itself. since the air weighs more it applies more force upwards on the balloon than the balloon applies downwards on the air, therefore it rises. However, a helium balloon will not go down unless a force such as large air resistance (heavy wind etc.) is applied to it. hope this helps.
What makes a balloon fly up?
The hot air, inside of it is very light and makes the balloon rise up.
What does a balloon do when heated?
the heat makes the molecules inside the balloon travel faster, pushing outward on the balloon. This, the balloon expands when heated
How does a balloon expand?
when you fill a balloon with air the air makes pressure. the air pressure maximizes the balloon fabric allowing the balloon to expand.
What makes a child's balloon rise?
Helium. The helium gas in the balloon is lighter than the air outside the balloon.
What makes a balloon rise?
hydrogen
How does a balloon get a charge from rubbing it on the hair?
Friction pulls electrons from the hair to the balloon. This makes the hair positive, and the balloon negative.
