Assessment: Pressure

For a similar total force, which produces a GREATER pressure on the ground: an elephant's large, flat foot, or a narrow stiletto heel?

A hydrometer floats higher in liquid X than in liquid Y. Which liquid is denser?

Find the pressure due to 5 m of seawater (density 1030 kg/m³, g = 9.8 m/s²).

A gas sample has a mass of 0.08 kg and a volume of 0.1 m³. Find its density.

A liquid's relative density is 0.92. Find its density (water = 1000 kg/m³).

A hydraulic press piston of area 0.01 m² needs to produce a pressure of 500,000 Pa. Find the force required.

A submarine dives to a depth of 200 m in seawater (density 1030 kg/m³, g = 9.8 m/s²). Find the pressure due to the water alone at that depth.

It is much easier to float in the Dead Sea than in an ordinary swimming pool. What is the best explanation?

An irregular rock of mass 350 g is lowered into a measuring cylinder; the water level rises from 100 cm³ to 150 cm³. Find the density of the rock.

A hydrometer reads 1.15 when floated in a salt solution. Find the density of the salt solution (pure water = 1000 kg/m³).