Displacement
Water displacement works by calculating the volume of water displaced by submerging an object. This volume corresponds to the volume of the object that was submerged.
The volume of water displaced is equal to the volume of the object submerged into the water
The volume of a solid object such as a rock or pebble can be determined by submerging it in a liquid in a graduated cylinder or other container. The difference in the volume of the liquid is the volume of the object.
Displacement is the process used to find the volume of an irregular object. This is done by submerging the object in water and measuring either the height the water rises or the volume of water that overflows the container.
volume.
by submerging it into a glass of water that has measurement lines and taking the difference between the original amount of water and the water with the object in it.You would use water displacement to find the volume of an irregular object.
If the shape of the object is regular (a cube or a sphere) then the volume can be calculated from the measurement of the object's key dimension(s). And the object's mass can be determined in a mass balance. Give the mass and volume the density is calculated by dividing the mass by the volume. Where the object's shape is irregular, the volume may be determined by measuring the volume of a liquid displaced by submerging the object completely in that liquid.
Density
Water displacement
The conclusion of the Archimedes principle is simply that the upward buoyant force that is experienced by a body immersed in a fluid, is equivalent to the weight of the fluid that the body displaces. This allows the volume of an object to be measured by measuring the volume of liquid it displaces after submerging. For any immersed object, the volume of the submerged portions equals the volume of fluid it displaces.
Make a mold of the object and then fill the mold with water and measure the volume of the water.
Step 1: Weight Object Step 2: Submerge object in a volumetric piece of glassware noting the volume before and after submerging. You can subtract the two volume values to determine the volume of the object--since it will displace it's own volume while submerged. Divide mass of object by the volume of water the object displaces to get the density. If this is that more involved question involving the density of the object and distance traveled over time let me know, I can solve that one too!