A description of density
Definition of density noun in oxford advanced learner's dictionary meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Home / medterms medical dictionary a-z list / bone density definition medical definition of bone density bone density: bone density. It is useful to have a clear definition of density, as this is perhaps not the simplest idea to get your head around we are all familiar with weight, and we are all familiar with volume, being the amount of space that something takes up. How can the answer be improved. Density definition density is defined as mass per unit volume the symbol most commonly used for density is ρ (the lower case greek letter rho) the capital letter d is also used density is an intensive property of matter, which means the size of a sample does not affect its value density commonly is expressed in units of grams per. As well as the speed of the fluid and the average particle size, the erosion rate depends on the particle density in the flow the density of a water vapor cloud depends on the number and size of particles per unit volume involved density is a measure of a distributed mass per unit volume for porous solids or particle suspensions. Definition of population density: measure of the intensity of land use, expressed as number of people per square kilometer or square mile also called density of population also called density of population. Definition of density in us english - the degree of compactness of a substance.
If your doctor suspects you have osteoporosis, a bone density test can assess your bone strength learn about the risks and results of this procedure. 3 a measure of the compactness of a substance, expressed as its mass per unit volume it is measured in kilograms per cubic metre or pounds per cubic foot, (symbol) ρ see also → relative density 4 a measure of a physical quantity per unit of. Main entry: den i y pronunciation: den(t)-s t- function: noun inflected form(s): plural -ties 1: the quality or state of being dense 2: the quantity of something per unit volume, unit area, or unit length: as a: the mass of a substance per unit volume density expressed in grams per cubic centimeter b: the average number of individuals or. Specific gravity is the ratio of the density of a substance to the density of a reference substance equivalently, it is the ratio of the mass of a substance to the. Density, mass of a unit volume of a material substance the formula for density is d = m/v, where d is density, m is mass, and v is volume density is commonly expressed in units of grams per cubic centimetre for example, the density of water is 1 gram per cubic centimetre, and earth’s density is 551 grams per cubic centimetre density.
Mass and weight the mass of an object is a fundamental property of the object a numerical measure of its inertia a fundamental measure of the amount of matter in. 2007, lisa akbari, every woman's guide to beautiful hair at any age, page 37: density, which is genetically linked, deals with the number of strands per square inch on your scalpnormal density can range from slight to substantial, varying from person to person.
Mass density represents the mass (or number of particles) per unit volume of a substance, material or object most substances (especially gases) increase in density as their pressure increases or as their temperature decreases. Medium-density fiberboard, or mdf, is a manufactured (engineered) wood product composed of wood fibers that are mixed with resin and wax and pressed into flat panels under high temperature and pressure it is used much like plywood as a building material in residential and commercial construction.
Weight (mass) per unit of volume used as a measure of the compactness of a substance it is commonly expressed as kilograms per cubic meter (kg/m3) or pounds per cubic foot (lb/ft3), although kilograms per liter (kg/l) and pounds per gallon (lb/gallon) are also sometimes used. The ability of a laboratory specimen to absorb or block the passage of light the optical density of a laboratory sample can be used as an indicator of the concentration of specific components in the sample. Definition of density written for english language learners from the merriam-webster learner's dictionary with audio pronunciations, usage examples, and. To calculate the density (usually represented by the greek letter ρ) of an object, take the mass (m) and divide by the volume (v): ρ = m / v the si unit of density is kilogram per cubic meter (kg/m3) it is also frequently represented in the cgs unit of grams per cubic centimeter (g/cm3.
A description of density
Density is defined as how tightly or loosely packed a substance is, or to the number of things or people in a certain area an example of density is population density, which refers to the number of people in a certain geographic. The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume the symbol most often used for density is ρ (the lower case greek letter rho), although the latin letter d can also be used. The density of water is about 1 kg per liter (1 liter of water has a mass of 1 kg), so anything that floats has a lower density, and anything that sinks is more dense density also has a general meaning of how much per single unit.
- In this lesson, we will look at the definition of density, which can be used to describe everyday objects we will also look into the density of a.
- Density is the mass per unit volume of a substance on earth, you can assume mass is the same as weight, if that makes it easier if you're not still in school, then you probably forgot you ever even heard it the definition of density, makes a lot more sense with a little bit of explanation.
- That means the small box has a higher density than the large box density also tells how concentrated or crowded something is you may have heard of population density in a city, there are many people packed into a small area, giving it a high population density in a rural area, there are more fields or wooded areas between houses that means.
- Population density definition at dictionarycom, a free online dictionary with pronunciation, synonyms and translation look it up now.
Information about density for kids free lesson: learn how it is measured, the definition, formula and si unit for density. Density control definition, meaning, english dictionary, synonym, see also 'density function',density function',charge density',current density', reverso dictionary, english definition, english vocabulary. A bone density test is a kind of x-ray test it measures the density of minerals (such as calcium) in your bones results are usually ready in 2 to 3 days results of bone density tests can be reported in several ways t-score your t-score is your bone density compared to the average score of a healthy 30-year-old (this is called the young. 90% of the time, speakers of english use just 7,500 words in speech and writing these words appear in red, and are graded with stars one-star words are frequent, two-star words are more frequent, and three-star words are the most frequent the thesaurus of synonyms and related words is fully.