Why do objects weigh more in vacuum than in air?

Answer 1

Objects do not actually weigh more in a vacuum compared to in air. Weight is the force exerted on an object due to gravity, and this force remains constant regardless of the medium the object is in. However, objects may appear to weigh more in a vacuum because there is no buoyant force acting on them, which is present in air and can partially counteract the force of gravity. This lack of buoyant force in a vacuum can make objects seem heavier when compared to their weight in air.

Answer 2

Well, sweetheart, objects don't actually weigh more in a vacuum than in air. Weight is the force of gravity acting on an object, and that force remains the same regardless of the medium. However, objects may feel heavier in a vacuum because there is no buoyant force from air pushing up against them, making them seem more substantial.

Answer 3

Oh, dude, objects don't actually weigh more in a vacuum than in air. Weight is determined by the gravitational pull on an object, which remains the same whether it's in a vacuum or surrounded by air. So, like, don't worry, your scale won't start lying to you just because you're in space.

Answer 4

Objects weigh the same in a vacuum as they do in air. Weight is a measure of the force of gravity acting on an object, and this force is not affected by the presence or absence of air. However, the apparent weight of an object may seem different in a vacuum due to the lack of buoyant force from the air.

Answer 5

Weight is dependant upon gravity and the relationship to large bodies of mass such as planets. However, if you were to be put into a vacuum on the surface of the Earth, you would way less. There is air pressure pushing down on you and that would add some weight. It also pushes up on parts of you. The difference is not likely to be very significant, but it should be measurable. However, I don't volunteer to be the person in the vacuum chamber! I am not a scientist, but I believe that you would weigh very slightly more in a vacuum. Think of our atmosphere as being a liquid of very low density compared with water. An object that floats in water displaces water in the amount of the object's weight; if you put a scale under a floating object, the scale registers the object's weight as zero. A perfectly bouyant object has the same density (specific gravity) as water, and as such will have a substantial weight if measured on land. But it will have no weight if weighed in water. An object that sinks in water will have weight, but it will weigh its land weight minus the weight of water displaced by its volume. This should be the same for a person (in a pressure suit, of course). The person will not be bouyed up at all by the atmosphere.

Answer 6

An object will weigh more in vacuum than in air because of the upthrust. There is no upthrust in vacuum whereas in air the pressure pushes an object or person from all sides. The air is dense and it is similar like water where the weight of an object is equal to the weight of the water displaced by it.

Answer 7

There is a buoyant force in water that largely counteracts gravity. Since the human body is about the same density as water, buoyancy just about completely cancels out the force you feel from gravity, effectively rendering you almost weightless. Since air is so much less dense than water the buoyant force you experience is negligible.

Answer 8

This is because there is no upthrust in vacuum so the gravitational force is the weight. In water, there is an upthrust which gets subtracted from the gravitational force. Therefore a body always weighs more in vacuum than in air.

Answer 9

Air helium however is an ellement and a part of air.

Answer 10

objects weigh more in vacuum than in air due to buoyancy of air.

objects displace air equal to their volume and this reduces their weight.

in vacuum, there is no displacement.