Physics
The density of water is 1.0 g cm-3. The density of iron is 7.8 g cm-3. The density of mercury is 13.6 g cm-3. Answer the following:
(a) Will a piece of iron float or sink in water?
(b) Will a piece of iron float or sink in mercury?
Measurements
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Answer
(a) Iron will sink in water as density of iron (7.8 g cm-3) is more than the density of water (1 g cm-3).
(b) Iron will float in mercury as the density of iron (7.8 g cm-3) is less than the density of mercury (13.6 g cm-3).
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