i was analysis this link and also I never saw a definite answer. One would certainly think if you have actually 1000 pounds the water, and you froze it and also weight it you would certainly still have actually the very same 1000 pounds the water as soon as weighed in ~ sea level. Even though over there is less movement, right?



For all helpful purposes the load will continue to be 1000 pounds when you frozen it. In theory the massive of the water will mitigate somewhat through cooling due to the fact that it will certainly contain less energy when frozen, yet the result would be completely negligible.

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Although the weight will certainly be the same, water broadens in volume by about a tenth together it freezes (which is why, because that example, pipes explode in icy weather). Since it is because of this less dense, your frozen block of 1000 pounds the ice will certainly float top top water, yet that is because its volume has increased on freezing and also not because its weight has reduced.

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edited Oct 16 "19 at 13:13
answer Oct 16 "19 in ~ 6:36

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Depends on exactly how you are defining "weight".

If you median weight as in the vector or scalar of the gravity acting on one object, Marco"s prize is what you want.

There is a third meaning of weight. This is basically "what a range measures". This definition also fits with how civilization typically experience the impacts of weight.

If we use that definition, then once standing on Earth, you might say your weight is what is countered through the normal force of the ground. Through this definition, astronauts in orbit are additionally "weightless", also though castle still have mass, and also gravity exhilaration on them.

Now, as soon as you frozen the water, the mass stays the very same (so the downward force $mg$ is the same); however the upwards buoyant force from the wait increases, due to the increased volume. Because the mass continues to be the same and buoyancy increases, this method the network downward force of the ice cream block will certainly reduce, and therefore it"s "weight" as measured through a scale would decrease.

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In the context of the Quora question, i think this third meaning of weight is the many relevant; because it is the easiest method to measure up weight, and also is typically what a layperson thinks of when they think about "how much does this thing weigh?". This is why human being will say freeze water will mitigate it"s weight.

If it to be weighted in a vacuum, girlfriend wouldn"t expect to check out a detectable adjust in weight because of freezing. However vacuum conditions aren"t the typical human experience, and most world don"t have accessibility to a vacuum chamber with a scale in it.