BECE Science 2019 Paper

Concept:Density relates mass and volume through the formula $\text{Density} = \frac{\text{Mass}}{\text{Volume}}$.Rearranging this formula allows the volume to be calculated directly from mass and density.Explanation:From the density formula, $\text{Volume} = \frac{\text{Mass}}{\text{Density}}$.Given: Mass $= 1.0\ \mathrm{kg}$ and Density $= 10\ \mathrm{kg}\ \mathrm{m}^{-3}$.Substitute the given values into the formula:$\text{Volume} = \frac{1.0\ \mathrm{kg}}{10\ \mathrm{kg}\ \mathrm{m}^{-3}}$.The $\mathrm{kg}$ unit cancels out, giving $\text{Volume} = 0.10\ \mathrm{m}^{3}$.Therefore, the volume of the metal block is $0.10\ \mathrm{m}^{3}$.This matches option B.Answer:B. $0.10\ \mathrm{m}^{3}$