Water level after melting of ice.

AI Thread Summary
When ice floating on water melts, the water level remains unchanged due to Archimedes' principle. The volume of the ice is equal to the volume of water it displaces while floating. As ice melts, it converts back to water, occupying the same volume it displaced. The expansion of water when it freezes and the subsequent contraction upon melting ensures the overall water level remains constant. Thus, the melting of floating ice does not affect the water level.
ajayraho
Messages
6
Reaction score
0
When an ice melts on water, which was initially floating on it, the water level must get increased.
Why it remains unchanged??
 
Physics news on Phys.org
ajayraho said:
When an ice melts on water, which was initially floating on it, the water level must get increased.
Why it remains unchanged??

How does the volume of the ice compare with the volume of the water produced when the ice melts?
 
Have you studied Archimedes' principle?
 
When water turns to ice, it grows. The amount of growth is exactly the amount that sticks up above the water. When it melts, it shrinks to fit exactly back inside the water level. So the water level doesn't change.
 
  • Like
Likes theodoros.mihos

Thread '1:1 versus 2:1 Mechanical Advantage debate'

The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
View full post »

Thread 'Newton's first law?'

Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
View full post »
Thread 'Beam on an inclined plane'

Thread 'Beam on an inclined plane'

Hello! I have a question regarding a beam on an inclined plane. I was considering a beam resting on two supports attached to an inclined plane. I was almost sure that the lower support must be more loaded. My imagination about this problem is shown in the picture below. Here is how I wrote the condition of equilibrium forces: $$ \begin{cases} F_{g\parallel}=F_{t1}+F_{t2}, \\ F_{g\perp}=F_{r1}+F_{r2} \end{cases}. $$ On the other hand...
View full post »

Similar threads

Why does water level stay the same when ice melts inside the water?
Replies
3
Views
5K
How will melted ice in a pool change the water level
Replies
15
Views
16K
Does ice melt faster in water because helps to change the phase
Replies
6
Views
2K
B Why does ice have more friction when it's solid compared to when it's melting?
Replies
11
Views
2K
Why Do Melting Antarctic Ice Caps Cause Sea Levels to Rise?
2
Replies
52
Views
8K
Answer: Terminal Temperature of Water with Ice Cube
Replies
6
Views
3K
Mixing water and ice
Replies
12
Views
856
When ice melts in a full glass of water, will the water overflow
Replies
11
Views
51K
Why does salt reduce the freezing point of water?
Replies
5
Views
7K
Problem about a block of ice melting (specific latent heat)
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top