MEDIUM
7th ICSE
IMPORTANT
Earn 100

Find the approximate area of an irregular lamina of which boundary line is drawn on the graph paper shown below. [The area of one small square =1 cm2]
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Important Questions on Physical Quantities and Measurement

MEDIUM
7th ICSE
IMPORTANT
A piece of brass of volume 30 cm3 has a mass of 252 g. Find the density of brass in (i) g cm-3, (ii) kg m-3.
EASY
7th ICSE
IMPORTANT
The mass of an iron ball is 312 g. The density of iron is 7.8 g cm-3. Find the volume of the ball.
EASY
7th ICSE
IMPORTANT
A cork has a volume of 25 cm3. The density of cork is 0.25 g cm-3. Find the mass of cork.
MEDIUM
7th ICSE
IMPORTANT
The mass of 5 litres of water is 5 kg. Find the density of water in g cm-3.
EASY
7th ICSE
IMPORTANT
A cubical tank of side 1 m is filled with 800 kg of a liquid. Find: (i) the volume of the tank, (ii) the density of the liquid in kg m-3.
MEDIUM
7th ICSE
IMPORTANT
A block of iron has dimensions 2 m×0.5 m×0.25 m. The density of iron is 7.8 g cm-3. Find the mass of block.
MEDIUM
7th ICSE
IMPORTANT
The mass of a lead piece is 115 g. When it is immersed into a measuring cylinder, the water level rises from 20 mL mark to 30 mL mark. Find the volume of the lead piece.
MEDIUM
7th ICSE
IMPORTANT
The mass of a lead piece is 115 g. When it is immersed into a measuring cylinder, the water level rises from 20 mL mark to 30 mL mark , Find the density of the lead in kg m-3.