The density of something is just the mass divided by the volume: D = m/V The mass you can measure on a balance or a scale, and the volume isthe amount of space the object occupies. You can find the volume of anirregular object by immersing it in water in a beaker or othercontainer with volume markings, and by seeing how much the level goesup. You can use this relation backwards too -- if you know whatmaterial an object is made of, you can look up its density in a book.Measuring its mass allows you to compute the volume. Tom

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How to find density of an object of irrigular shape by using weight in air and weight in water method.Thanks in adgaianation.netce- Abdullahi Ahmed Abdi (age 50 years)Hargeisa,Somaliland
As described in the previous question the density is given by D = M/V. If you don"t know V then you have to compare the density of the unknown to that of a known density, e.g. water.Call the density of the object Do and the density of water Dwater. The weight of the object in air is then Mair = Do * V. The weight of the object in water is Mwater = (Do - Dwater) * V.Dividing one equation by the other the volume V cancels out and the ratio of the two measurements is Mair/Mwater = Do/(Do - Dwater). Using the value of Dwater as 1 gram per cubic centimeter you can easily solve this equation for the density of the object Do.LeeH
How do you find the density of an irregular shape ? (please make it easy to understand im not really 25 im much much younger im in 6th grade and u did have some stuff about the density of an irregular shape stuff but it was really confusing and i have to put my stuff in my own words for science homework and ur stuff cant really be put in your own words when you put in answers make sure all ages are able to understand it)- sushie (age 25)America
The density just means how much mass per volume. That means mass (M) divided by volume (V). It"s easy to find the mass M. You can just weigh something on a scale. So the trick is to find the volume V of the irregularly shaped object. As Tom wrote earlier, there"s a way to do this. Take some water, enough to submerge your object. Mark the level of the water. As the object goes into the water, it will force the water up in the container. Mark the level of the water when the object is completely under. Now take the object out. You can pour water in from a measuring cup (say one marked in liters) to see how much is needed to fill from the lower mark to the upper mark. That volume is the same as the object"s volume.Mike W.According to legend, Archimedes figured all this out in the third century B.C. when the Greek king asked him to verify that his gold crown was really gold and not some gold plated fake. While taking a bath Archimedes noticed the water level rising when he got into the tub. He got the idea of how to measure density and, again according to legend, was so elated with his discovery he ran naked down the street shouting "Eureka, I have found it". Mike"s explanation is an example of what is now called "Archimedes Principle". LeeH
How can I find the density of an irregular object using improvised materials- DANIEL (age 18)ASHANTI,GHANA

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