Multiple choice

Water is flowing through a pipe under constant pressure. At some place, the pipe becomes narrow. The pressure of water at this place

  1. increases

  2. decreases

  3. remains the same

  4. depends on several factors

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

According to Bernoulli's principle, when water flows through a narrower section of a pipe, its velocity increases to maintain the same flow rate. This increase in velocity results in a decrease in pressure - faster-moving fluids exert less pressure.

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