The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Adam Augustyn. The expression particle density refers to the number of particles per unit volume, not to the density of a single particle, and it is usually expressed as n. Tables that list the weight per unit volume of substances are also available this quantity has various titles, such as weight density, specific weight, or unit weight. The weight of a body, which is usually of more practical interest than its mass, can be obtained by multiplying the mass by the acceleration of gravity. Density offers a convenient means of obtaining the mass of a body from its volume or vice versa the mass is equal to the volume multiplied by the density ( M = V d), while the volume is equal to the mass divided by the density ( V = M/ d). The densities of common solids, liquids, and gases are listed in textbooks and handbooks. For example, the density of air is 1.2 kilograms per cubic metre. Density can also be expressed as kilograms per cubic metre (in metre-kilogram-second or SI units). For example, the density of water is 1 gram per cubic centimetre, and Earth’s density is 5.51 grams per cubic centimetre. Density is commonly expressed in units of grams per cubic centimetre. The formula for density is d = M/ V, where d is density, M is mass, and V is volume. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!ĭensity, mass of a unit volume of a material substance.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.Britannica Beyond We’ve created a new place where questions are at the center of learning.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Divide the mass by the density in g/ml, and you will get the volume. Demystified Videos In Demystified, Britannica has all the answers to your burning questions. 125 Gram to Milliliter Conversion Calculator. ![]() Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.Along with values, enter the known units of measure for each and this calculator will convert among units. Density is defined as mass per unit volume. The calculator can use any two of the values to calculate the third. Sphere: V = 4 3 π r 3, where B is the area of the base of the pyramid and h is the height of the pyramid. The Density Calculator uses the formula pm/V, or density (p) is equal to mass (m) divided by volume (V).Check out How to Calculate Volume for more detailed notes and images on these formulas. Below are the formulas for the objects listed above. Each shape has its own formula that calculates how much three-dimensional space that object occupies. If your object has an irregular shape, you can use the displacement method to determine volume.Ĭhoose the correct equation to calculate volume.X Research source A regular pyramid is a pyramid in which the base of the pyramid is a regular polygon, meaning that all of the sides of the polygon are equal in length, and all of the angles are equal in measure. A pyramid is a three-dimensional shape with a polygon for a base, and lateral faces that taper at an apex (the point of the pyramid).A cylinder is a three-dimensional shape that has two identical flat ends that are circular in shape, and a single curved side that connects them.A rectangular solid, also known as a rectangular prism, is similar to a cube in that it is a three-dimensional shape with six sides, but in this case, the sides are rectangular instead of square. ![]()
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