Question

A cube of ice is dropped carefully into cylinder of liquid, and the following observations are made ;

1. The cube floats about half-way down the cylinder.
2. After 30 secs the cube has melted a little but floats in the same position.
3. After 50 secs the cube has nearky melted and is floating higher.
4. Afetr 2 mins ice is floating on surface of liquid in the cylinder.

On the basis of this information, which of the following statements is correct?
A. The cube becomes more dense from situations 2 to 3 to 4.
B. The liquid in the cylinder was probably water.
C. The liquid in the cylinder becomes more dense as the cube melts.
D. The liquid in the cylinder must be slightly less dense than ice cube.

Answer 1

Pls explain methodology

Answer 2

And also why the other answers are wrong

Answer 3

I think instead of me providing all those comments, it would be better for you to analyze it yourself. If the relative position of the ice in the liquid rises as it melts, the liquid is becoming more more dense. Why?

Answer 4

Pls help, at least give me the right answer