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Is it the weight that makes things float?
No, it's the air volume on each item. For example, a balloon filled with air will surely float on the water, but a ballon filled with water will not float. That's because there is no air in the second one and that makes it even heavier.
How are ship able to float?
Just like any other object, a ship will float if it has less density than the liquid on which it is supposed to float. Density = mass / volume; in the case of a ship, that includes the volume of the ship plus any air trapped inside.
What makes balloons float when they are full of air but not float when they are deflated?
When balloons float they have helium in it. Helium is not air, but a gas. It's lighter than air, which makes it float.
Why do things float in the air?
things float in air because of density
Why does something sink or float according to buoyancy?
Density (mass x volume) of the object. If the object is less dense (helium in air, or foam in water) than the fluid in which it is placed, it will float. Likewise, if the object is more dense (lead in water, or water in air), it will sink.
How balloons and blimps are able to fly in oceans of air?
Balloons float because of the same principal as how ships float: bouyancy. A ship displaces a volume of water. If the ship's weight is less than the volume of water that it displaces, then it will float. Same is true for a balloon. It displaces a volume of air. If the Hydrogen or Helium in the balloon weighs less than the volume of air it displaces, then it will rise.
How do you you find volume from weight?
Weight doesn't tell you the volume. One pound of air, one pound of water, and one pound of gold all have vastly different volumes.
Is it the weight that makes things float?
No, it's the air volume on each item. For example, a balloon filled with air will surely float on the water, but a ballon filled with water will not float. That's because there is no air in the second one and that makes it even heavier.
How many magnets to float 400 pounds in mid air?
It is not a question of how many magnets you need, one would do; but how strong the field is and how strongly it attracts the 400 pound object.
What is the volume of 1 pound of air?
It weighs exactly 1 pound and it's all free... for now!
Does a hot air balloon need heat or cold air to float?
hot
How are ship able to float?
Just like any other object, a ship will float if it has less density than the liquid on which it is supposed to float. Density = mass / volume; in the case of a ship, that includes the volume of the ship plus any air trapped inside.
Why does the hull of a ship contain a large volume or air why?
Because the air reduces the ship's overall density, and so allows it to float.
What is a pound of air?
A pound of air is NOT a measure of pressure. A unit of pressure would be a weight ( a force really) for instance pound by a surface (square inch for instance). Pound is a unit of weight only. At sea level on earth barometric pressure, 1 cubic metre weighs 1.2kg (or 2.64 pound). Which means 1 pound of air represents a volume of 0.379 cubic metre of air. This obviously varies with atmospheric pressure (the air pressure) and the gravitional pull. a pound of air would represent a much bigger (6 times bigger roughly) volume on the moon for instance.
Why wont a blloone with carbon dioxide float?
To float in air, the density of the balloon (divide the combined mass of balloon + contents by its volume) must be LESS than that of the same volume of air. If the gas inside the balloon has a greater density than air, the combined object (balloon + contents) won't have less density than air, either.
Usually the hull of a ship contains a large volume of air. Why?
Because the air reduces the ship's overall density, and so allows it to float.
Usually the hull of a ship contains a large volume of air . Why?
Because the air reduces the ship's overall density, and so allows it to float.
