1. Which of these has the lowest density?   Cork   Water   Aluminum   Glass   Hint Half-n-half Clue   2. The density of water is about 100 kg/m3 at room temperature.   True   False   3. The density of water at room temperature is about   10 g/cm3   1 g/cm3   0.1 g/cm3   0.01 g/cm3   Half-n-half Clue   4. Density is defined as   mass × acceleration   mass × volume   mass / volume   volume / mass   Half-n-half Clue   5. The SI unit of density is   kg/m3   m3/kg   g/cm3   cm3/g   Half-n-half Clue   6. The density of oxygen at room temperature is about 1.3 kg/m3. Therefore, its density in g/cm3 is   0.0013   1300   130   0.013   Half-n-half Clue   7. A metal body of mass 54 g occupies a volume of 20 cm3. Identify the metal.   Aluminum with density = 2.7 g/cm3   Tungsten with density = 19.4 g/cm3   Lead with density = 11.4 g/cm3   Iron with density = 7.9 g/cm3   Half-n-half Clue