JAMB Physics 2010 Objective — Question 19
Question 19 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2010 Objective paper, with the correct answer and a full explanation.
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19. If a container is filled with ice to the brim, what happens to the level of water when the ice completely melts? A. The water level in the glass outflows B. The level of water drops C. The level of water remains unchanged D. The level of water goes up
- A. The water level in the glass outflows
- B. The level of water dropsCorrect
- C. The level of water remains unchanged
- D. The level of water goes up
Explanation
The density of ice is about 0.9gcm-3 while that of water is 1.0gcm-3. This means that when the equal mass of each substance is considered, the volume of ice will be greater than that of water. Thus, when the ice melts, it forms water whose volume will drop, so the level of water drops.
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