Question

(a) What is Archimedes principle.
(b) Write two applications of Archimedes principle.
(c) Relative density of silver is 10.8.The density of water is 10 Kg m
SI unit?
What is the density of silver in​

Answer 1

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(a} Archimedes' Principle states that " when an object is fully or partially immersed in a fluid, it experiences an upthrust, which is equal to the weight of water displaced by the immersed portion of the object".

b) The applications of Archimedes' principle are: (i) Archimedes' principle is used in designing ships and submarines. (ii) Lactometers based on Archimedes' principle are used to measure purity of a sample of milk. (iii) Hydrometers used to measure density of liquids are based on Archimedes' principle.

(c) RD of Silver = 10.8 & density of water = 10^3kg/m^3. Substituting the values in the formula : 10.8 = density of Silver /10^3 kg/m^3.

SI UNIT = NEWTON (N)

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