In what scenario is an object likely to have low density?

• A. It is a dense metal
• B. It is filled with air
• C. It is submerged in water
• D. It has high mass and volume

Answer: (B)

The scenario in which an object is likely to have low density is when it is filled with air. Density is defined as mass per unit volume, and materials with low density typically contain less mass for a given volume. Air is a gas and has a much lower density compared to most solids and liquids. Hence, an object filled with air, such as a balloon or a foam structure, will exhibit a lower overall density than those filled with denser materials.

In contrast, dense metals represent materials with high density, making them less likely to have low density. Being submerged in water does not inherently relate to the object's density; it may float or sink based on its relative density to water. Lastly, an object characterized by high mass and volume will inherently have a higher density, as density increases with either an increase in mass or a decrease in volume. Therefore, the presence of air within the object is what distinctly leads to a low density.