Class 9 · ICSE · Physics

Fluids

Thrust and pressure, Archimedes' principle, buoyancy, density and relative density.

Questions: 11
PYQs: 0
Topics: 0

Syllabus mapping: ICSE syllabus (CISCE)

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Questions

11 questions in this chapter.

Answer available
Class 9 · Physics · Fluids
Why is it easier to swim in sea water than in river water?
3 marksMediumApplication based
Answer available
Class 9 · Physics · Fluids
A body weighs 50 gf in air and 30 gf when fully immersed in water. Find the upthrust, the volume of the body and its relative density.
3 marksMediumNumerical
Answer available
Class 9 · Physics · Fluids
The relative density of a substance is 2.5. What is its density in kg m⁻³, and will it float on water?
3 marksMediumNumerical
Answer available
Class 9 · Physics · 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.
3 marksMediumNumerical
Answer available
Class 9 · Physics · Fluids
Why does a ship float although it is made of iron, which is denser than water?
3 marksMediumShort answer
Answer available
Class 9 · Physics · Fluids
State Archimedes' principle and the law of flotation.
3 marksMediumShort answer
Answer available
Class 9 · Physics · Fluids
A force of 200 N acts normally on a surface of area 0.5 m². Calculate the pressure.
3 marksMediumNumerical
Answer available
Class 9 · Physics · Fluids
Calculate the pressure exerted at the bottom of a tank of water 5 m deep. Take the density of water as 1,000 kg m⁻³ and g = 10 m s⁻².
3 marksMediumNumerical
Answer available
Class 9 · Physics · Fluids
Define thrust and pressure and state the SI unit of each.
2 marksEasyShort answer
Answer available
Class 9 · Physics · Fluids
State the principle of Archimedes.
2 marksEasyShort answer
Answer available
Class 9 · Physics · Fluids
A body of volume 100 cm³ is completely immersed in water. Calculate the upthrust acting on it. (Density of water = 1 g cm⁻³, g = 10 m s⁻²)
3 marksMediumNumerical