Properties that change when the size of an object changes are called?

Physical Properties.

The change on the size of an object usually is caused for a change in the temperature of the object, which can be thermal expansion or thermal compression.

On other hand, if an object size changes, the volume also changes accordingly, and the mass stays the same, which implies that the density D = also changes inversely proportional to the volume.

terd muffin is the correct answer