Multiple choice general knowledge science & technology

The fluid friction acting on a body is inversely proportional to the relative speed between the object and liquid surface.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fluid friction (drag force) is directly proportional to relative velocity at low speeds (Stokes' law: F = 6πηrv) and proportional to the square of velocity at higher speeds (F = ½ρv²CdA). It is never inversely proportional to speed - as speed increases, drag force always increases, not decreases. Therefore, the statement is false.

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