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In a vacuum, a balloon with helium (for example) would also fall down. The point is that gravity pulls on the surrounding air with more force, because it is heavier; this pushes the balloon up. The situation is similar to a boat floating in water. The water displaces the boat - pushing it up precisely because of gravity.

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Q: If gravity is always pulling things down how does helium rise?
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Related questions

What is the force of the earth pulling things toward its surface?

Gravity.


When a ball is thrown away from the earth's center it will always?

due to newtons laws of gravity, all things that go up come down for example helium balloons and satellites


What does the word gravity means in science?

It is the atmospheric pressure of the earth pulling all things down but gravity can be overcome with speed and velocity.


Gravity speeds things up?

Yes; gravity is a constant force. It never loses its ability to "pull." A human being pulling a wagon on a rope would eventually not be able to run any faster. But gravity isn't like that. It's a constant energy, and can keep pulling faster, no matter how fast it is already pulling.


What does gravity do for the world?

Gravity is a force of attration.It is a pulling matter.Gravity holds up the earth without gravity we would be having comets every single day ,it holds things in place.


What is the difference between gravity and magnatism?

Gravity is the force pulling objects down to the ground and magnetism is a force that pulls things with the opposite pull towards itself.


What are two things that affect how strong the force of gravity is?

The mass of the two bodies (gravity is always between 2 things) and the distance between them.


Why do things that go up always come down?

because of gravity


Which force is responsible when a ripe fruit falls from a tree?

Of course, the gravitational pull of the earth is the prime factor here. The apple is being pulled to the centre of the earth, but in most cases is blocked by something .Example, the ground. Gravity is pulling everything toward it, but depending on how heavy it is determines how much force that gravity has over the object. For example: Gravity has more control over a car than a helium balloon, because the heavier the object, the more gravitational pull it conducts.


What is gravityy?

Gravity is a force pulling together all matter (which is anything you can physically touch). The more matter, the more gravity, so things that have a lot of matter such as planets and moons and stars pull more strongly.


What are things that are gravity?

There are no things that are gravity. Gravity is a force that is associated with anything that has mass.


Why does gravity always pull the center of two objects towards each other?

It's an attractive force, so it isn't one-way as we tend to think of it... pulling us down. It is pulling big things towards each other... two way. And since it is affected by mass and distance, the closer things are the harder they pull (like magnetism), and the bigger they are the harder they pull, but the force is centered in the mass... so just like it is easier for us to keep our balance when we are lower to the ground, gravity pulls large objects by their largest mass. For planets, that is in the center.