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(1a)
Graph
(1aix)
(i) I avoided errors due to parallax while taking the readings on the spring balance.
(ii) I ensured the retort stand and clamp are well tightened.
(1bi)
Archimedes’s Principle states that a body fully or partially submerged in a fluid experiences a buoyant force equal to the weight of the fluid displaced by the body.
(1bii)
(i) Density is the mass per unit volume of a substance WHILE Relative density (or specific gravity) is the ratio of the density of a substance to the density of a reference substance, typically water for liquids and solids.
(ii) Density is measured in kilograms per cubic meter (kg/m³) or grams per cubic centimeter (g/cm³) WHILE Relative density is a dimensionless quantity and has no units.
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(3)
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