The Essentials of Education – 101

Information About Some of the Purposes of the Density Formula

There are very few people who have never heard the word “density” before. If, for example, you have ever been enrolled in a chemistry class or a physics class, there’s no doubt that the instructor talked about density on more than one occasion as the course progressed. You might not, however, fully understand what density is or what the formula of density is. Fortunately, this guide is here to help.

To start, the density formula is the mass of an object divided by it’s volume. By now you might be thinking that there’s no way you’ll ever need to use density in your day-to-day life, but this isn’t necessarily true. There are, as you will find out as you continue reading this guide, numerous reasons to put the formula of density to use in everyday life. Though you might not use each one of these applications in your own life, you will certainly have to use some of them frequently and others occasionally.

Learning More About Archimedes’ Principle
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One of the most famous uses of the density formula involves buoyancy. As the tale goes, Archimedes of Syracuse was commissioned to determine if King Hiero II’s brand new crown contained the proper amount of gold; the king was under the impression that his goldsmith might have stolen some of the metal for his own gain. To make a long story short, Archimedes discovered that the crown’s volume could be figured by the mass of the water it displaced when it was put into a tub. The volume, in turn, was used to determine the density, as per the density formula.
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Understand the Seasonal Stratification That Occurs in Lakes

Water’s density maximum tops out at 4 degrees Celsius. In all lakes but the most shallow, the water is generally stratified so that the densest water settles at the bottom and does not really mix with the less-dense water toward the surface. When the chill of fall and winter come each year, cooling the temperature of lake waters, the dense water that had been at the bottom over the spring and summer is pushed towards the top, restoring nutrients and making sure the lake is prepped for the upcoming year.

Lava Lamps Rely on Density

Lava lamps, which can also be referred to as fluid motion lamps, enjoyed a huge amount of popularity in the 1970s and are still popular these days. The formula of density is a major player in how these sorts of lamps operate. The oil that fills these lamps has a density slightly higher than that of water, so when the oil is heated by a lightbulb, blobs of water float around inside.