Answer to Question #169395 in Physics for Joshua

Question

Answer the following question.

Water expands when it freezes into ice.

1. Which has more volume, kg of ice or kg of water?

2. Which has more mass, a kg of ice or a kg of water?

3. Which has a higher density, water, or ice (or the same)?

4. Which has more mass, a liter of ice or a liter of water?

Answer 1

1. The density of ice is $\approx 917kg/m^3$, and the density of water is $\approx 1000kg/m^3$ thus, the kg of ice has more volume than the kg of water.

2. 1 kg is always 1 k no matter of what. Thus, they are the same.

3. Water (see point 1).

4. Water has a higher density, thus, since volumes are equal, the mass of water is bigger.

Answer. 1) Ice, 2) Same, 3) Water, 4) Water.