Understanding Specific Gravity: What is it and Why it Matters

Learn what specific gravity is, how to calculate it, and its importance in determining whether substances will float or sink.

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Specific gravity (g) is a dimensionless quantity that compares the density of a substance to the density of water at 4°C (which is 1,000 kg/m³). It is calculated using the formula: Specific Gravity = Density of the Substance / Density of Water. This metric helps determine whether a substance will float or sink in water.

FAQs & Answers

  1. How do you calculate specific gravity? Specific gravity is calculated by dividing the density of the substance by the density of water at 4°C.
  2. What is the significance of specific gravity in everyday life? Specific gravity helps determine if objects will float or sink in water, impacting fields from engineering to cooking.
  3. Can specific gravity change with temperature? Yes, the density of water changes with temperature, which can affect specific gravity calculations.

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For a deeper dive into related scientific concepts, check out our videos on density, buoyancy principles, and properties of materials.

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