State the principle of Archimedes.
Fluids
Original Khojo Papers practice question — not from a past board paper.
Thrust is the force acting normally on a surface, measured in newtons. Pressure is the thrust acting on unit area, measured in pascals, where one pascal is one newton per square metre.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
The same thrust produces a larger pressure on a smaller area, which is why a sharp knife cuts better.
From the same topic and chapter, at a similar level.
State the principle of Archimedes.
Fluids
The relative density of a substance is 2.5. What is its density in kg m−3, and will it float on water?
Fluids
A body of volume 200 cm3 is fully immersed in water. Calculate the upthrust on it. Take the density of water as 1 g cm−3 and g = 10 m s−2.
Fluids
A force of 200 N acts normally on a surface of area 0.5 m2. Calculate the pressure.
Fluids
State Archimedes' principle and the law of flotation.
Fluids
Why is it easier to swim in sea water than in river water?
Fluids