What is the displacement and how can you use it to calculate density?

Displacement refers to the volume of fluid that is moved or displaced by an object when it is submerged in that fluid. To calculate density, you can use the formula: density = mass/volume. By measuring the mass of the object and using the volume of the displaced fluid (which equals the volume of the object), you can determine its density. This method is particularly useful for irregularly shaped objects where direct measurement of volume is challenging.