Class 9 Physics · Chapter 6 · Test 3
Liquid Pressure
36 MCQs
36 questions · 30 min · 36 marks
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Sample questions
The first 5 of 36. Try each one, then tap to see the answer.
Question 1
The pressure at a point inside a stationary liquid is given by:
- AP = ρgh
- BP = F × A
- CP = m/V
- DP = kx
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Answer: A
The pressure due to a liquid column is P = ρgh.
Question 2
In the equation P = ρgh, the symbol ρ represents:
- APressure
- BLiquid density
- CDepth
- DGravitational acceleration
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Answer: B
The symbol ρ represents the density of the liquid.
Question 3
In P = ρgh, h represents the:
- AArea of the container
- BMass of the liquid
- CDepth below the liquid surface
- DHeight of the container above sea level
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Answer: C
The variable h is the depth of the point below the liquid surface.
Question 4
If the depth in the same liquid is doubled, the pressure due to the liquid becomes:
- AOne-half
- BFour times
- CUnchanged
- DTwice
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Answer: D
Since P = ρgh, pressure is directly proportional to depth when density and gravity are constant.
Question 5
If the liquid density is doubled while depth and gravitational acceleration remain unchanged, liquid pressure becomes:
- ATwice as large
- BHalf as large
- CFour times as large
- DUnchanged
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Answer: A
Pressure is directly proportional to liquid density.
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