Why Do Objects Float?

Answer

When an object is immersed in a fluid, there is an upward force called buoyancy that makes the solid to float on water. If this force is greater than the atmospheric pressure forcing the object downwards, then the object is pushed to the surface and hence it floats.
Q&A Related to "Why Do Objects Float"
An object will float when submerged into liquid because its mass is lighter than that of the liquid. Hmm.. Is that too confusing? ok well think of it in this way... Imagine yourself
http://wiki.answers.com/Q/What+bouyancy+is+needed+...
This has to do with density, which is mass divided by volume. Some objects start out with a
http://www.chacha.com/question/why-do-objects-floa...
Density is determined by measuring an object's mass and volume. Density is a measure of the amount of mass a given volume of an object has. Two objects can be the same size, yet have
http://www.ehow.com/info_12049367_steel-boats-floa...
If 90 percent of Earth's gravity reaches the space station, then why do astronauts float there? The answer is because they are in free fall . In a vacuum , gravity causes all objects
http://www.nasa.gov/audience/forstudents/5-8/featu...
2 Additional Answers
Objects float due to water pressure. The object you are trying to float weighs a certain amount, so when you set it on the water that weight is pushing down on the water which in turn, pushes back up on the water and causes the floating to occur.
Objects float because of their density. Some are more dense than water and that is why they float. An example of this is wood. For boats you have to make it less dense than water.
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