The principle of Archimedes

To measure the relative density of solids and liquids by a balanced lever

To measure the relative density of solids and liquids by a balanced lever Relative density of a solid A sample of the test solid is attached by a loop of thread to a metre rule pivoted near its mid-point and is balanced by the weight W, of any suitable mass, hung on the opposite side (Fig. 12.8). The …

To measure the relative density of solids and liquids by a balanced lever Read More »

Hydrometers

Hydrometers If we had performed the experiment with the test-tube and lead shot just described with several liquids of different densities, we should have found that the tube sank to a different level in each of the liquids. In every case, however, the total mass of liquid displaced (equal to volume x density) would have been equal …

Hydrometers Read More »

Balloons

Balloons If a cork is held below the surface of water and then released it rises. The density of cork is less than that of water, so the weight of water displaced is greater than that of the cork itself. In accordance with Archimedes’ principle, the cork is acted upon by a resultant upward force equal to the …

Balloons Read More »

Relative density of a liquid by using Archimedes’ principle

Relative density of a liquid by using Archimedes’ principle Using the same procedure as in the previous experiment, a sinker is weighed first in air, then in liquid, e.g., white spirit, and finally in water. The sinker is any convenient solid body, e.g., a piece of metal or a glass stopper. Since the same sinker is used in …

Relative density of a liquid by using Archimedes’ principle Read More »

To measure the relative density of a solid by using Archimedes’ principle

To measure the relative density of a solid by using Archimedes’ principle On page 101 we explained the meaning of the term relative density, and its importance in the accurate measurement of density. By definition, mass of any volume of the substance relative density of a substance = mass f I I f 0 an equa volume 0 water or …

To measure the relative density of a solid by using Archimedes’ principle Read More »

To investigate Archimedes’ principle for a body in liquid

To investigate Archimedes’ principle for a body in liquid A displacement can is placed on the bench with a beaker under its spout (Fig. 12.2). Water is poured in until it runs from the spout. When the water has ceased dripping the beaker is removed and replaced by another beaker which has been previously dried and weighed. Any suitable …

To investigate Archimedes’ principle for a body in liquid Read More »