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Force and Pressure — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceForce and Pressure1 Mark
MCQ
The same force $“F”$ acts on four different objects having the areas given below, one by one. In which case the pressure exerted will be the maximum?
  • A
    $20m^2$
  • B
    $50m^2$
  • ✓
    $10m^2$
  • D
    $100m^2$
✓

Answer

Correct option: C.
$10m^2$
The force $“F”$ is all the same in all situation making it constant.
Using the formula: pressure = force/ area.
This suggest that since $“F”$ is constant, decrease in area will lead to increase in pressure and vice vasa. This may be represented by a real-life example with a sharp healed shoe of a lady and a normal shoe. If a lady weighing $140N$ may step on you while wearing the sharp healed shoe, the pain will be more severe than while wearing a normal flat shoe. Therefore, the lesser the area, the greater the pressure. Hence, your answer will be $10m^2.$

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