How is the weight of solids (Ws) calculated?

Prepare for the ICC Soils (EC) Material Testing Exam. Utilize study tools like flashcards and multiple-choice questions, complete with explanations. Gain confidence for your certification test today!

The calculation of the weight of solids (Ws) is based on the volume of solids (Vs), the specific gravity of solids (Gs), and the unit weight of water (lambda(w)). The equation provides a method for determining the weight of solid particles when their volume and specific gravity are known.

Specific gravity is a dimensionless quantity that represents the ratio of the density of a substance to the density of water. When multiplying the volume of solids (Vs) by the specific gravity (Gs) and the unit weight of water (lambda(w)), you derive the weight of the solids, which is crucial for various soil mechanics and agricultural applications.

Other choices represent different relationships that do not accurately calculate the weight of solids in the context of soil tests. For instance, dividing total weight by total volume or dealing with variables like water weight does not specifically relate to calculating the weight of solid soil particles. Understanding the role of specific gravity and the relationship between volume and weight is fundamental in soil testing and analysis.