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A log will float in water because a log is less dense than water. If you take any number of objects/substances that don't mix immidiately (ex: water, molasses, oil, ice, a cork and/or a rock) and put them in a container together the items will settle into layers by density (salad dressing does this too). The bottom layer will be the most dense and the top will be the least. You can actually do this experiment yourself with a clear drinking glass as the container. Interesting factiod: Not all wood floats in water. There are a few types of wood (Ebony, Lignum Vitae) that are denser than water and therefore do not float.
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∙ 11y ago
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Why does a log float?
An object will float on water if it has less density than the water. Or than any other liquid on which it is supposed to float.
How is a log able to float in a river?
It is lighter than water.
What happends to a log if the density of water is decreased?
A log? As in a log that came from a tree, right? If the density of water was decreased enough, such that it is now lower than a log's density, then the log would no longer float, but sink.
Can you tell why large log of wood floats on water but steel needle sinks?
Actually, the steel needle can float on water as well, so long as the surface tension is not broken. Answering the question, the buoyancy (ratio of density to that of displaced water) causes the log to float.
Why a large log of wood float on water but a steel needle sink?
The water extracted by the wood log while floating is of equal weight of the wood or more. For this reason, the log of wood floats while a steel needle sinks.
Why does a log of wood sink in water?
Doesn't always, depends on amount of air inside, if it is less dense than water, it will float.
Does balsa wood float in water?
While there are a lot of varieties of pine wood, all of the ones I've seen are less dense than water (they will float).
Why does a log sink in the water if the radius is decreased but nothing else is changed?
Well, I am assuming the "things" that we aren't changing are: length and mass. A log is buoyant (it floats) because it displaces more water (by mass) than the mass of the log below the water level. (Huh?) Let me break that down. When ever you put anything in the water it "displaces" that water. The object takes up space and the water takes up space. They can't use the same space so the object pushes the water aside. If you fill a glass with water and then drop in grapes the water will spill over the side. If the glass wasn't totally full then the water level will rise. In order for something to float the water it pushed away needs to have more mass than the object. So if you drop something in that mass 75g of mass and it displaces 100g of water the item will float. It is lighter than water. Now, anything that is above the surface of the water (think iceberg) isn't displacing any water. So, if our log has a mass of 10k and is 1 meter long when we change the radius we are making it smaller around but not shorter or lighter/heavier. But, it is now more dense. Instead of being a big log weighing 10k it is a thin log weighing 10k. Now that is is smaller it displaces less water. The amount of water it is displacing no longer has more mass than the log itself, so the log cannot float.
Can jeremejevite float on water?
Jeremejevite does not float on water.
What sediments float in water?
What sediment float in the water
How does a wood ball float?
If you've ever seen a plank of wood or even an entire log floating along a river, then you've probably wondered how and why this happens!When something like a log of wood is put into water, it pushes down on the water and the water moves aside to make room for the object. (Think, for example, of how the water in the bathtub moves aside and makes room for you when you step into the tub!) When there is enough water to push back up against the object with the same force as the object is pushing down, then the object will float!That's why a piece of wood that is lightweight for its size will float in a big body of water, like the ocean or a river. However, that same piece of wood might not float in a different smaller body of water, such as your swimming pool or tub!
Will a marker float or sink in water?
I have a marker which float in water.
