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Everyday Science Medium FPSC PPSC NTS Uploaded: 22 Jun 2026

Which scientific principle explains why objects float or sink in a fluid?

  • A Archimedes' principle
  • B Pascal's law
  • C Bernoulli's principle
  • D Newton's law
Correct Answer: Option A — Archimedes' principle
Explanation:
Archimedes' principle states that an object submerged in a fluid experiences an upward buoyant force equal to the weight of fluid displaced determining whether it floats or sinks.
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