D. Answer these questions.
1. Define density and give its SI unit.
2. Does density of a substance depend on
its shape or size? Does it depend on the
material of the substance?
3. Give an activity to find the density of an
irregular solid which is heavier than water
and is insoluble in it.
4. How can you determine the density of a
cork piece using a sinker and a measuring
cylinder?
Answers
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Answer:
The density of a substance is defined as mass of the substance per unit volume.
Density of substance =
volume of substance
mass of substance
SI unit of density is kg/m
3
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