Selina solutions

Selina solutions

Grade 7

Physical Quantities and Measurement | Numericals

Question 10

Q10) A cubical tank of side 1m is filled with 800 kg of a liquid. Find (i) the volume of the tank, (ii) the density of liquid in kg\ m^{-3}

Solution:

(i) The volume of a cube = side\times side\times side

Side of the cubical tank side = 1 m

Therefore, volume = 1\ m\ \times1\ m\ \times1\ m

(ii) The density of liquid in kg\ m^{-3} = \frac{Mass}{Volume}

Mass = 800 kg

Volume = 1\ m^3

d = \frac{800}{1}=800\ kg\ m^3

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Question 10

Q10) A cubical tank of side 1m is filled with 800 kg of a liquid. Find (i) the volume of the tank, (ii) the density of liquid in kg\ m^{-3}

Solution:

(i) The volume of a cube = side\times side\times side

Side of the cubical tank side = 1 m

Therefore, volume = 1\ m\ \times1\ m\ \times1\ m

(ii) The density of liquid in kg\ m^{-3} = \frac{Mass}{Volume}

Mass = 800 kg

Volume = 1\ m^3

d = \frac{800}{1}=800\ kg\ m^3

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Want to top your physics exam ?

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