Overflow

Overflow

A thirsty college student fills a glass with water and ice to the very top, with the ice floating above the rim of the glass. Another student says that's not really smart, because if the ice melts (before the student takes a drink) the glass will over flow. Is the second student correct.?

  • A. No, The amount of water displaced by the ice depends on the weight of the ice, not it's volume. So when the ice melts the water level in the glass will remain constant.
  • B. No, The volume of the ice is greater than the volume of the water displaced, so when the ice melts, the water level in the glass will actually go down.
  • C. Yes, Since the ice floats above the rim of the glass, when it melts the water remaining will also be above the rim of the glass and the glass will overflow.
  • D. This is a confusing question, perhaps I should stick to drinking soda.

Answer