1. A metal body of mass 58.2 g occupies a volume of 3 cm3. Identify the metal.   Aluminum with density = 2.7 g/cm3   Tungsten with density = 19.4 g/cm3   Iron with density = 7.9 g/cm3   Lead with density = 11.4 g/cm3   Hint Half-n-half Clue   2. Density is defined as   mass × acceleration   mass × volume   mass / volume   volume / mass   Half-n-half Clue   3. The density of air is about 1 g/cm3 at room temperature and atmospheric pressure.   True   False   4. Which of these has the lowest density?   Aluminum   Water   Cork   Glass   Half-n-half Clue   5. One kg of air is compressed from 1 m3 to 0.5 m3. Which of the following statements is true?   The density is doubled.   The mass is halved.   The mass is doubled.   The density is halved.   Half-n-half Clue   6. Which of these has the highest density?   Mercury   Water   Lead   Tungsten   Half-n-half Clue   7. The density of mercury is 13.6 g/cm3. So, the mass of 10 cm3 of mercury is   1 g   136.0 g   None of these   136000 g   Half-n-half Clue