Ace the 2026 CFE Physical Science Honors Test – Blast Off to Success!

Density is defined as the mass per unit volume of a substance. This concept helps to understand how much matter is contained within a particular amount of space. When calculating density, you divide the total mass of the substance by its volume, which provides a measure of how compact or concentrated the material is.

Understanding density is essential in various scientific applications, such as determining whether an object will float or sink in a fluid, examining material properties, and predicting the behavior of objects in different environments. The definition reflects the relationship between mass (how much matter is present) and volume (how much space that matter occupies), making it a key concept in physical science.