Lesson: Chapter 15 — Fluid Pressure and Its Applications

15.1. Pressure 3 of 5 Reset answers

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Question 3

A box of weight 500 N stands on a table on a face of area 0.2 m². What pressure does it exert on the table?

A 600 Pa B 2500 Pa C 250 Pa D 40 Pa

The right answer is the one marked above.

2500 Pa. pressure = force ÷ area = 500 N ÷ 0.2 m² = 2500 Pa.

600 Pa and 40 Pa come from adding 0.2 on, or from multiplying by it instead of dividing. Remember that dividing by 0.2 is the same as multiplying by 5.

Answer the question to continue.