Which statement best describes how shape and volume are used to classify solids in physics?

• A. Solids have a definite shape but an indefinite volume.
• B. Solids have an indefinite shape and a definite volume.
• C. Solids have both indefinite shape and indefinite volume.
• D. Solids have a definite shape and a definite volume.

Answer: (D)

Verified step by step guidance

1. Understand the properties of solids in terms of shape and volume. In physics, solids are characterized by having particles closely packed in a fixed arrangement.
2. Recall that because of this fixed arrangement, solids maintain a definite shape; they do not conform to the shape of their container.
3. Recognize that solids also have a definite volume, meaning the amount of space they occupy does not change easily under normal conditions.
4. Compare these properties with those of liquids and gases, which have indefinite shapes and, in the case of gases, indefinite volumes.
5. Conclude that the correct classification for solids is that they have both a definite shape and a definite volume.