Pascal’s law and liquid pressure
Answers are for parents and teachers.
1
In a hydraulic press F₁ = 40 N and S₂ : S₁ = 25. F₂ in N?
1000
2
Pressure in Pa at 10 m depth in water (g = 10 N/kg, ρ = 1000 kg/m³)?
100000
3
Water column in communicating vessels is 40 cm. How many cm is a kerosene (800 kg/m³) column?
50
4
Write three places where a hydraulic press or hydraulic drive is used.
Sample: car lift, excavator, hydraulic brake.
5
Why does a dam wall get thicker toward the bottom?
Water pressure rises with depth, so the lower part must withstand greater pressure.