density is mass per volume. First weigh (mass) the key, then to find it's volume, place it into a container with liquid and measure how much volume is displaced.
Density = (mass) divided by (volume)regardless of the substance, or the shape of the sample.
There is no general formula. Many times an object can be looked at as the sum of smaller parts for which a formula is known. Ultimately all shapes can be reduced to small polyhedrons and then summed.
Since mass is usually expressed in grams and volume in cubic centimeters, density is expressed in grams/cubic centimeter. For solids that have an irregular shape, the displacement method must be used to determine their volume. Choose a graduated cylinder large enough to hold the object.
Water displacement is used to measure the volumn of an irregular shaped object. If a Bowling ball was immersed in water, you could use the difference in the before and after water amount to give you the mass of the object inserted.
Measure the object's mass using a scale. Measure the object's volume by calculating its dimensions (length x width x height). Divide the mass by the volume to find the density of the object. The unit of density will be mass per unit volume (e.g., g/cm3).
method usede to figure the volume of an irregular shaped object
To calculate the density of an irregular shaped floating object, you can measure its mass using a balance and then find its volume by submerging it in a known volume of water and measuring the water displaced. For a regular shaped floating object, you can simply divide its mass by its volume to find the density.
Density = (mass) divided by (volume)regardless of the substance, or the shape of the sample.
To find the density of a regular shaped object, you can calculate it by dividing the mass of the object by its volume. For irregular shaped objects, you would measure the mass of the object using a scale, then measure its displaced water volume when submerged in a graduated cylinder. The density can then be calculated by dividing the mass by the volume of water displaced.
Measure the volume of the object which is same as the volume of the displaced liquid in which that sinks. And measure the mass of the same object from a weighing machine. then use density = mass/volume
There is no general formula. Many times an object can be looked at as the sum of smaller parts for which a formula is known. Ultimately all shapes can be reduced to small polyhedrons and then summed.
I am not positive but i think that a regular shaped object can be measured and an irregular can not Hope this helps :D
Density is calculated using the formula: density = mass/volume. For the irregular object with a mass of 44 g and a volume of 22 cm³, the density would be 44 g / 22 cm³ = 2 g/cm³. Therefore, the object's density is 2 g/cm³.
To find the density of an irregular shaped object, you would need a balance to measure its mass, a graduated cylinder to measure its volume by displacement method, and a ruler to measure its dimensions for calculations.
it is an object that does not have an explanation for the sides
The volume of the object.
The same units are used for regular or irregular objects - for example, kilogram per cubic meter.