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Worksheets[Physics] Chapter Force & Pressure (Pressure in Liquid)
Total questions: 27
Worksheet time: 54mins
When you increase your depth under water, the water pressure on your body
increases
decreases
stays the same
Why won't you sink in mud if you wear boots?
Because the surface area is larger creating less pressure.
Has air in it to keep you floating.
Because the mud won't want you.
Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?
The design of this structure is stronger.
Water pressure increases with depth.
The cost of construction is lower.
Water pressure acts uniformly in all directions.
An object will float on water if it is
less dense than water.
more dense than water.
the same density as water.
When blood pressure is measured, the cuff of the sphygmomanometer is wrapped round the upper arm and must be held at the level of the heart. Why?
Blood pressure depends on the level of the blood.
Blood pressure is normal when the cuff and heart are at the same level.
Blood is able to flow easily to the wrist.
The pressure of sea water at the bottom of the sea is 1.2 × 108 N m–2.
Determine the depth of the sea.
[Density of sea water = 1020 kg m–3]
1.18×104 m
1.18×105 m
1.18×106 m
1.18×109 m
Diagram shows a U-tube filled with two liquids, X and Y which are immiscible. The heights of the liquid columns of X and Y from level P are 8 cm and 4 cm respectively. Which of the following statements is true?
The density of X is less than the density of Y.
The liquid pressure is higher in column X than in column Y at level P.
The densities of liquids X and Y are equal.
A submarine has a surface area of 300 m2.
The density of sea water is 1050 kg m–3.
At what depth under the sea, will the additionalpressure on the submarine be 5 × 105 Pa?
[Take g = 10 N kg–1]
47.62 m
67.62 m
87.62 m
57.62 m
The figure below shows a reservoir on a hill. The reservoir supplies water to a water tank on a tall building.
Calculate the water pressure at X.
(Density of water = 1000 kg m–3)
1.4×109 Nm–2
1.4×102 Nm–2
1.4×105 Nm–2
1.4×108 Nm–2
A coin sinks to a depth of 5 m in a liquid of density 800 kg m–3. At what depth, in a different liquid of density 600 kg m–3, will the coin be subjected to the same pressure?
6.67 m
8.67 m
9.67 m
5.67 m
The figure shows a pond with two fish P and Q.
What is the correct relation of the water pressures on fish P and fish Q?
Water pressure on fish Q > Water pressure on fish P.
Water pressure on fish Q < Water pressure on fish P.
Water pressure on fish Q = Water pressure on fish P.
An object weighing 30 N displaces a volume of water with a weight 20 N. What will the object do?
It will sink
It will float
It will fly
None of these answers
When you increase your depth under water, the water pressure on your body
increases
decreases
stays the same
Which physical quantity will increase when the diver dives deeper?
Which comparison is correct about the pressure exerted on the fishes?
[Density of water = 1 000 kg m−3]
[Density of water = 1 000 kg m−3]
Calculate the density of the mixture.
[Density of water is 1 g cm−3]
