
Liquid Pressure and Pressure
Authored by Charles Martinez
Physics
4th Grade
NGSS covered
Used 1+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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
Tags
NGSS.HS-PS2-4
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
Tags
NGSS.HS-PS2-4
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The pressure of water exerted on the fishes is PX, PY and PZ respectively.
Which comparison is correct about the pressure exerted on the fishes?
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