Ice cube melting - why does water level stay even
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Ice cube melting - why does water level stay even

[From: ] [author: ] [Date: 12-06-26] [Hit: ]
If the object weighs more than an equal amount of water it sinks, and if it weighs less it floats. A floating object displaces an amount of water equal to its weight.The density of ice is a little bit less than the density of water at the same temperature, so there is a slight rise in water level when it melts. But its so small its difficult to measure.......
The volume of the object DISPERSED is equal to the volume of the water dispersed, right? Doesn't that mean the portion of the ice that isn't submerged is not displacing any water? So shouldn't the water level increase?

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The weight of the water displaced pushes up on the object. If the object weighs more than an equal amount of water it sinks, and if it weighs less it floats. A floating object displaces an amount of water equal to its weight.

The density of ice is a little bit less than the density of water at the same temperature, so there is a slight rise in water level when it melts. But it's so small it's difficult to measure.

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The ice volume is greater than the water volume if not frozen, but has the same weight, so its density is lower than liquid water. That's why it floats in water.
When it is floating in water,it is still displacing its own WEIGHT of the liquid water (the weight of the water that was frozen)
When it melts, therefore, the water level will drop, as when melted, there is less water volume added to the liquid water than while it was ice at a greater volume.

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a single ice cube floats with a small portion of it sticking out

the volume of the part that is below the water line is the same volume as the water being pushed upward (remember the water line before putting ice, it is lower)

the mere fact that the ice cube floats midway mean that the volume of the two is equal.if it is not equal, the object will sink, if it is lower, then it should be above the water line (like a floating styrofoam)

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No the volume of water dispersed by the object equals the volume of the object. (not the volume of the object that is below the water, but all of it).

I believe this is Archimedes Principle

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Frozen water takes up more space than liquid water, because ice is less dense (due to the way that ice crystals form)

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think about adhesion?
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