Single correct option
A piece of ice floats in a glass filled to the brim with water. When the ice melts completely, the water
- A. will overflow
- B. will fall below the brim
- C. will not overflow
- D. will become warmer
Show answer and solution
Answer: (C) will not overflow
Floating ice displaces water equal to its own weight. Melted ice gives water of the same weight, so it occupies exactly the volume that was displaced. The level therefore stays the same and nothing spills. Overflow would occur only if the ice were held down or resting on the bottom.
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