Iron has a density of 7.8 g per cubic centimetre. A 78 g piece of iron has volume:
A10 cubic centimetre
B7.8 cubic centimetre
C100 cubic centimetre
D1 cubic centimetre
Answer & Solution
Correct answer: A. 10 cubic centimetre
1. Volume = mass / density.
2. = 78 / 7.8.
3. = 10 cubic centimetre.
4. So the iron piece has volume 10 cubic centimetres.
_Source: Selina Concise Physics ICSE Class 8, Ch 1 'Matter'_
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