of course density"Mass/Volume"
the pice of wood has a mass of 18 grams calculate it volume and density
The volume is the ratio mass/density for all materials.
calculate the density of the element because each element has a different density
How can you calculate surface density if the volume density is 1.4 g/cm3
Usually yes. Each material has its characteristic density. Of course, it is possible for two different materials to have densities that are very close to one another.
how do you calculate density
Still the object's mass divided by the object's volume.The density of the composite object will be somewhere between the densitiesof the two different materials.
It means: * Calculate the density of an object * Calculate the density of its pieces * Compare
An abstract, esoteric mathematical operation known as "division." Divide mass by density, and you get volume. A note for purists: Technically speaking, specific gravity is not density, it is a ratio of densities. However, since one of the materials in the ratio is water, and its density is well known, it's easy to calculate the density of a material from its specific gravity.
All materials have a density.
Density or, more strictly, variations in density are perhaps most commonly used to separate materials of different density in a machine called a centrifuge. Density measures a relationship between the mass and volume of an object.
You can look up the density of different materials in a table of densities. But if you want a formula, just use the definition of density as mass / volume. This is also how you would measure the density of a substance of unknown density.