A motif is a recurring symbol which takes on a figurative meaning. We see them in books, films, and poems. In fact, almost every text commonly uses the literary device of the motif. A motif can be almost anything: an idea, an object, a concept, a character archetype, the weather, a color, or even a statement.
The Specific Gravity of liquids and solids is defined as a dimensionless unit which is the ratio of density of a material to the density of water at a given temperature, where density is defined as the materialâs mass per unit volume and is measured in kg/m 3.
Lesson Summary. The specific gravity of an object is the ratio between the density of an object to a reference object. Usually, our reference object is water, which has a density of 1 g/mL or 1 g/cm^3.esson Summary. The specific gravity of an object is the ratio between the density of an object to a reference object. Usually, our reference object is water, which has a density of 1 g/mL or 1 g/cm^3.