Density and Specific Gravity Concepts

This set of flashcards covers key concepts related to density, specific gravity, and their applications in healthcare, as framed in the provided lecture notes.

Density

The mass per unit volume of a substance, often expressed in grams per milliliter (g/ml).

Specific Gravity

The ratio of the density of a substance to the density of water, a dimensionless number.

Conversion Factor

A ratio used to convert from one unit to another, such as density expressed as grams per milliliter.

Mass

The amount of matter in an object, typically measured in grams.

Volume

The amount of space occupied by a substance, typically measured in milliliters (ml).

Hydrometer

An instrument used to measure the specific gravity or density of a liquid.

Osteoporosis

A medical condition characterized by weak and brittle bones, often indicated by low bone density.

Grams per milliliter (g/ml)

The units used to express density, showing how many grams of a substance are in one milliliter.

Urine Density

The measure of concentration in urine, which can indicate hydration status or other health conditions.

Hydration status

A measure of body fluid balance, often assessed through urine density.

Archimedes' Principle

A principle that explains why objects float or sink based on their density relative to the liquid.

Calculating Volume

Using the formula Volume = Mass / Density to determine the volume of an object.

Concentrated Urine

Urine that has a higher density due to less liquid and more solutes, often a sign of dehydration.