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The two factors that determine a material's density (such as that of wood) are its mass and volume.
You are confusing density with weight. Two pieces of wood of the same density but different sizes have different weights. Density, you could say, is like hardness. If you take a 6 foot piece of wood, and cut 2 feet from it, the two pieces of wood are definitely different weights but the same hardness. Since they came from the same original piece of wood, they almost have to be the same density. There are some types of wood that have such high density that they will not float on water.
69.1%
The wood is "lighter" (weighs less; has less mass) than the iron because of it's density. Iron has a greater density than wood, and density is defined as mass/volume, so having the same volume (size), the iron will have a greater mass.
the pice of wood has a mass of 18 grams calculate it volume and density
It depends of the piece of wood itself and the type of wood that it is.
The two factors that determine a material's density (such as that of wood) are its mass and volume.
The two factors that determine a material's density (such as that of wood) are its mass and volume.
The density of this piece of wood would be 456.7 g/cm^3.
the density of water is higher than the density of wood... & so an iron piece sinks & a ton of wood floats...
You are confusing density with weight. Two pieces of wood of the same density but different sizes have different weights. Density, you could say, is like hardness. If you take a 6 foot piece of wood, and cut 2 feet from it, the two pieces of wood are definitely different weights but the same hardness. Since they came from the same original piece of wood, they almost have to be the same density. There are some types of wood that have such high density that they will not float on water.
The density of the wood is lower than the density of the water, so the water displaces the wood and is held to the 'floor' by gravity. Lead is more dense, so it can displace the water and sink.
because have high density than oil
The larger piece will probably have more mass than the smaller one. But if the wood is of the same type and "all things are equal" as regards moisture content, sap content, etc., the density of both pieces of wood will be the same. Density does not depend on the size of a sample. Density is mass per unit of volume. If a large gold nugget and a small gold nugget are compared, the larger nugget will have more mass, but both nuggets will have the same density.
69.1%
The wood is "lighter" (weighs less; has less mass) than the iron because of it's density. Iron has a greater density than wood, and density is defined as mass/volume, so having the same volume (size), the iron will have a greater mass.
The weight of a piece of wood depends on its density. The density varies between species: from 0.16 g/cc for balsa to as much as 1.33 g/cc for lignum vitae.