Multiple choice

Which of the following is the working principle of a washing machine?

  1. Centrifugation

  2. Dialysis

  3. Reverse osmosis

  4. Diffusion
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Washing machines use centrifugation as their working principle. The drum spins at high speed, creating centrifugal force that pushes water outward through the drum's perforations while clothes are pressed against the drum walls. This efficiently separates water from clothes. Dialysis is for blood filtration, reverse osmosis for water purification, and diffusion is passive molecular spread - none of these apply to washing machine operation.

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