Pressure and Depth
1 mark · EasyWhich change would reduce the pressure difference between two points in a liquid, all else staying the same?
- A.Increase the depth between points
- B.Decrease the density of the liquid
- C.Increase the gravitational field strength
- D.Use a wider tank
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Show answer
Correct option: Decrease the density of the liquid
Also accept: Decrease the density
Common mistakes: Choosing wider tank or increasing other factors
Show mark scheme and worked solution
Marking points
B1 · 1 mark · Correct option selected: Decrease the density of the liquid.
Worked solution
Pressure difference depends on h, ρ, g. Only decreasing density will reduce pressure difference in this list.