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Physics Properties Of Matter Level: High School

Archimedes principle

Ice is less dense than water so it floats in water . But the densities of ice and water are close , so most of an iceberg is submerged , even in salt water which is denser than pure water .

a) For the specific gravities of ice and water given in the table on the next page what fraction of the volume of the ice cube in a glass of pure water will be above the surface ? If you used salt water of specific gravity from the same table what fraction of volume of the ice cube would be above the surface ?

b)If the cube’s volume is (1.0 cm)^3 What is the weight of the cube ?

c) What is the weight of the part of the cube above water level in pure water ?

d) What is the weight of the part below water level in pure water ?

e) What is the weight of the pure water displaced by the sunken part of the cube ? How does this compare with your answer to part (b) ? Does this make sense ?