How Can Density Be Calculated Without Volume for Cubes and Cylinders?

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SUMMARY

The discussion focuses on calculating the density of solid cubes and cylinders without directly measuring volume. Key equations provided include: for a rectangular prism, density equals mass divided by the product of length, width, and height; for a cube, density equals mass divided by width cubed; and for a cylinder, density equals mass divided by the product of π, radius squared, and height. The user confirms the validity of these equations, acknowledging that they are indeed derived from the fundamental density formula.

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  • Understanding of basic physics concepts, specifically density.
  • Familiarity with geometric formulas for cubes and cylinders.
  • Knowledge of mass measurement techniques.
  • Basic mathematical skills for manipulating equations.
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Please, can you help me I need to help to find density for solid cube and cylinders ex.wood cube,wood cylinders, aluminum cube. I need to find density without the volume. I looking for the equation to work out the problems.

I can't use D=mass/volume

I have no volume to calculate
because we only measure the length, width and mass
in our physics lab class.


Thank you
 
Last edited:
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Rectangular prism-
Density= mass/(length*width*height)

Cube-
Density= mass/width cubed

Cylinder
Density= mass/(pi*radius squared*height)

Or do those not count??
 
Thank-You

Thank-you Gale 17, I can use these equations they do count.
 
Incidentally, the formulae Gale listed are density = mass / volume.
 

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