how do i calculate density of solid?

Question

1.Measure the wood block with a ruler to find the length, width, and height. So you can measure the volume (0.001 cc) (v= l * w * h) to the nearest 0.01 cm.

what does that mean? give me an example problem and the answer. I mostly just don't get what i do with the 0.001 cc. Do i multiply it with the volume which is length x width x height? help please.

Answer 1

You're calculating the volume using Length*Width*Height.

For example, if it was 2 cm by 3 cm by 4 cm, the volume would be 2*3*4 = 24 cc

Then to find the density, divide the mass of the block by the volume.

For example, if you measured that same block to be 48 grams, the density would be 48/24 = 2 grams/cc

Answer 2

volume is (length)(height)(width).
if you time the volume you got to this 0.001cc, you will get a volume in cc unit. if you didn't time your volume with this 0.001cc, you will your answer in m^3 (SI unit).


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so many ways to calculate a solid density.

we know density is equal to mass per volume. the only problem here is to calculate the volume of the solid. solid can be divided into two group that is :
i) having a nice geometry, symmetrical. this type you can calculate it volume by simply by using ruler or anything that can measure length.
ii) having a non-symmetrical geometry. such as, rocks.

if someone give a rock and ask you to calculate it volume, you can use these step below:
a) prepare a beaker of water (full until the water drop out) and a measuring cylinder.
b) tie the rock using a threat.
c) drop the rock slowly into the beaker filled (full) with water.
d) the water in the beaker will certainly drop out. make sure all the water that drop out are going into the measuring cylinder.
d) now you can just read the volume of the rocks out from the measuring cylinder.



by obtaining the volume. now you can calculate the density after you measure it mass.
density = mass / volume.



=) regards.

Answer 3

measure the block. find its length, width and height in centimeters so you will know it volume. if you multiply it all together you'll have volume in cc or cubic centimeters.just provide your answer two numbers after the decimal. Density equals mass divided by volume.

Answer 4

desity = mass/volume

put the wood in a balance and find its mass (mass=weight / g; g=9.81 m/s^2)

you have the volume as 0.001 cc

now density is mass/vol gms/cc