Physics 2010 JAMB Past Questions - Question 19: If a container is filled with ice to the brim, what happens to the level when the ice completly melts?

Correct Answer

B

Explanation

When a container is filled with ice to the brim, and the ice completely melts, the level of the liquid in the container will remain the same. This is because the ice, when it melts, turns into water, and the total volume of water (resulting from the melted ice) is equal to the initial volume of the ice. The principle of conservation of mass and volume dictates that the total amount of matter and volume remains constant during the phase change from solid ice to liquid water, assuming no other factors like evaporation or condensation are at play. Therefore, as the ice melts, the water fills the same volume in the container as the original ice, so the level remains unchanged.