Physical quantities and measurements , Physics : CBSE and ICSE BOARD .<br /><br />Its very helpful to all kind of competitive exam .<br /><br />Topic :- Physical quantities and Measurement.<br /><br />Key concepts<br /><br />1) Measurement of density of irregular solids using a Eureka can.<br />2) Measurement of density of irregular solid using a measuring cylinder.<br />3) Measurement of density of liquids.<br />4) Relative density.<br />5) Floating and sinking.<br />6) Variation of density with temperature.<br />7) Comparison of densities in three States of matter.<br /><br />DENSITY<br />Definition :- <br />Density is defined as the mass per unit volume of a substance.<br />i.e , Density ( d ) = mass (m) / volume (v)<br />Or, d = m / v <br />Unit :- <br />CGS :- g/cm^3<br />SI :- kg/m^3<br /><br />
