Stupid science question?

Question

Ok i have to know these things...(pretty stupid)

- How to I determine the density of a solid or liquid
- How do I find the volume of an irregular shaped object?

Answer 1

Density = mass / volume
To find the volume of an irregular object submerge it in water the amount the water rises is the volume of the object.

Answer 2

For volume, it's actually very easy. Get a container large enough to hold the irregular shaped object, and fill the container with water.

Record exactly how much volume of water is in the container.

Place the object in the container, and allow the excess water to exit the container.

Remove the object, and then record how much volume of water is still left in the container.

Subtract the current volume from the starting volume and you now have the volume of the object that was placed in the water. This is not 100% accurate though, since obviously some water will "stick" to the object, drip back in or out of the container, etc.. but it is the most common practice for finding volume.

As far as density, that one I can't remember how to do accurately... sorry.

Answer 3

Take an irregular object, say a tennis racket, and submerge it in a known volume of water and then measure the volume with racket underwater. Subtract initial volume from final volume.

Answer 4

D of solid detremn be mass over volume same thing for liqid
to detrmine solid volume bring beker add fix amount of water to it thaen drop the solid on it measer the defrince between the water level befor and after this is you solid volume

Answer 5

to determine the density of a liquid/solid, you take the mass of the liquid/solid and divide it by its volume. formula: d = m/v

Answer 6

for a cube is
the side3
for a prism I dont remember and for a
sphere I don't remember either

density for irregular objects:
the simbol is similat to P

P=m/v slug3/Ft3

orin here we use a simbol similar to H


P =H/g

you can find H using

H= w/v
H=m.g/v