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ICSE Class 7 Physics Question 7 of 18

Physical Quantities and Measurement — Question 10

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Question

Question 10

A cubical tank of side 1 m is filled with 800 kg of a liquid. Find:

(i) the volume of tank

(ii) the density of liquid in kg m-3.

Answer

Side = 1 m; mass = 800 kg

(i) Volume of cubical tank = (side)3 = (1 m)3 = 1 m3

So, volume of tank = 1 m3.

(ii) Density=MassVolumeDensity=8001=800kg m3\text{Density} = \dfrac{\text{Mass}}{\text{Volume}} \\[1em] \text{Density} = \dfrac{\text{800}}{\text{1}} = 800 \text{kg m}^{3}

So, density of liquid = 800 kg m-3.