 physics channel for physics please subscribe my channel hello and welcome back to another episode of physics partner today we are going to dive into the concept of a specific gravity and explore its real life applications so what is specific gravity anyway it's simply the ratio of a substance density to the density of our reference substance the reference substance usually is commonly water and the density of water is usually taken as 1 gram per cubic centimeter so how we calculate specific gravity calculating a specific gravity the straightforward process the formula for a specific gravity is sg specific gravity is equal to density of a substance divided by the density of the reference substance this mean that if we know the density of a substance and we also know the density of water the reference substance we can calculate the specific gravity of that substance now let's explore some of the numerous applications of specific gravity one of the most common real world application is specific gravity will show whether something will float or sink solids and liquids are majored against water so if the specific gravity is less than one it will float if it is higher than one it will sink this measurement is extremely useful to design floating bodies we can also use specific gravity to determining the purity of a substance we can use the specific gravity of a substance to compare it with the specific gravity of pure substance to identify any impurities or contaminants and other application of a specific gravity is the field of geology geologists can use specific gravity to differentiate between different types of rocks and minerals for instance gold has a specific gravity of nineteen point three two which is much higher than that of most other minerals present in the earth's crest the properties allows geologists to identify gold deposits and potential mining sites in the oil industry specific gravity plays a crucial role in determining the quality of crude oil different types of crude oil have different specific gravities and the specific gravity of crude oil can indicate the presence of impurities such as sulphur which can impact the refinery process overall specific gravity is an important concept with numerous real-life applications from the purity of a substance to the quality of the crude oil and even in the production of alcoholic beverages specific gravity plays a significant role in diverse fields so next time you can across the concept you will know the significance that it holds so I think it's enough for today so thank you very much for listening and watching I hope you enjoyed the video I hope this video is useful for you so take care of yourself and don't hesitate to write an email if you have any question curies suggestion and even classes are required take care of yourself meanwhile see in the next video goodbye