density



Density

Formula: The formula for finding density is d=g/ml (d=density g=grams, ml=milliliter,). The reason we use this is to show how much something weighs in grams per milliliter. The density of water is 1 g/ml. We also use this formula to see whether items will float or sink in a fluid (usually water). If the object is denser, then the object will sink, but if it is less dense, it will float.

Take a look at the two boxes below. Each box has the same volume. //If each ball has the same mass, which box would weigh more? Why?//
/ What is wrong with the above statement? /The box that has more balls has more mass per unit of volme. This property of matter is called density. The density of a material helps to distinguish it from other materials. Since mass is usually expressed in grams and volume in cubic centimeters, density is expressed in grams/cubic centimeter. - This is all from "Nyu.edu"




 * This shows a square that is very dense but filled with gas ......when a solid object is placed differently the density stays the same. However, a liquid will slightly change, and a gas will drastically change. A gas will fill any space that is provided, if you took the same gas out of one container and put it into a container that is twice as big it would expand to fill all of the extra space, while still using the same amount of gas molecuels.**

For example:
 * To find the density of a solid, you must find the volume. First, you fill a cup up with water and read off how full it is in ml, wich is 75 ml. Then you take that same cup and place your object in it, and read how full it is, wich is 95 ml. After that, you subtract both answers and it is 20 ml, that is your volume. Next, you find the mass, you take your solid and you weigh it on a scale, wich is 10 g. Lastly, you divide volume over mass wich is .5 g/ml, it will __not__ sink.**

Mathematically:
 * I like this example, are there any errors?**
 * Yes, I put it will not sink.**
 * From [Wikkipedia density.com]:**
 * where:**
 * ρ**
 * (rho) is the density,**
 * //m//**
 * is the mass,**
 * //V//**
 * is the volume.**
 * Different materials usually have different densities, so density is an important concept regarding [|buoyancy], metal purity and [|packaging].**
 * In some cases density is expressed as the [|dimensionless] quantities [|specific gravity] (SG) or [|relative density] (RD), in which case it is expressed in multiples of the density of some other standard material, usually water or air/gas.**


 * Citations come at the end of what you are quoting. I don't give much for cutting and pasting other people's work. I'll give good extra credit if you put this in your own words!**


 * Different materials have different densitys such as glue, and honey, but the densitys are different if the volume is. The glues density for 70 g and 80 ml is**
 * __70g__ = 0.8 g/ml.**
 * 80ml**
 * The honeys density for 32.4g and 60ml is __32.4g__ = .54g/ml.**
 * 60ml**


 * We can calculate density using the formula:**
 * Density= Mass/Volume**
 * Density and Bouyancy (how much junk is in your trunk):**
 * Density= Mass divided by volume = g/ml**


 * Buoyancy=**
 * You will float water density as long as you 1g divided by 1ml 1g/ml**
 * Displace heavier >1g/ml sink**
 * amount of H2o < 1g/ml float**
 * //by. destinyy Bach//**


 * "If the density of an object is more than 1 it will sink and if the density of an object is less than one then it will float"**
 * //-Pascal Cont//e**

//**-Joey Hickey**//
 * Something I learned last year, is that density is equal to love because M(mass) divided by V(volume) and if ypu put M over V it will sume what like a heart. So therefore it is equal to love.**

//**- Mia Harris**//
 * Buoyancy= you will float as long as you displace a heavier amount of h2o**
 * Buoyant force= mass of H2O.**

//**-Pascal Conte**//
 * What does all of this have to do with food fighting?**
 * The density is a big effect on food fighting because the more dense the food the more it will hurt's when it hits you and, the less dense the food the less it hurts when it hits you.**


 * Density: _?_mass divided by _?_volume equals _?_g/ml**
 * Water's Density: _?_g divided by _?_ml equals _?_g/ml**
 * more > 1g/ml = sink**
 * less < 1 g/ml = float**


 * Formula: d=mass divided by volume= _g/ml**
 * when finding the density, always remember:**
 * -always divide the top by the bottom**
 * -dont forget to always write the units**
 * -dont forget to always write the units**


 * Buoyancy: You will float as long as you displace a heavier amount of water (h2o)**
 * Neutrally Buoyant: Equal to weightlessness**
 * //-Sydnie Ross//**