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WorksheetsPHYSICS CHAPTER 2 : PRESSURE
Total questions: 23
Worksheet time: 43mins
What is the formula for liquid pressure?
P=pg
P=hpg
P=hg
Pressure in liquids is not affected by the
mass or size
density or size
size or shape
The S.I unit for pressure is
pascal (Pa)
mm Hg
m H2O
millibar (mbar)
Formula of actual pressure is
P=hpg + P atm
P=hpg
h=p/pg
A fish is at a depth of 2m in an aquarium and it have 1025 kg m‐³ density of water.
(Gravitational acceleration = 9.81 ms-²)
What is the pressure experienced by the fish?
20110.5 Pa
20210.5 Pa
20111.5 Pa
20012.5 Pa
The density of water in thr pool is 1000 kg m³.
(Gravitational acceleration = 9.81 ms-²)
What is the pressure exerted by the water at X ?
2.5 x 10‐² Pa
2.5 x 10² Pa
4.0 x 10⁴ Pa
4.0 x 10³ Pa
4.0 x 10-² Pa
Which is the correct comparison of the pressure at Q and P ?
Pressure at Q > Pressure at P
Pressure at Q = Pressure at P
Pressure at Q < Pressure at P
A diver dives to a depth of 30m in the sea. What is the actual pressure acting on his body?
Density of sea water, P=1060 kg m-³
Gravitational acceleration, g=9.81 ms-²
Atmospheric pressure = 100 kPa
411 kPa
412 kPa
413 kPa
Figure shows a U-tube filled with water and liquid P is insoluble in water. Given that the density of water is 1000 kg/m³, find the density of liquid P.
833 kg m-³
834 kg m-³
835 kg m-³
The diagram shows a U-tube filled with two types of liquid. X and Y which are not mixable. If the density of liquid X and liquid Y are 1200 kg/m³ and 800 kg/m³ respectively, find the value of h.
h=15 cm
h=20 cm
h=25 cm
What is the meaning of Atmospheric Pressure?
the pressure due to the weight of the layer of air acting on the surface of the earth.
the pressure due to the mass of the layer of air acting on the surface of the earth.
What happens to the height, H when this apparatus is submerged in water?
height, H will increase
height, H will decrease
height, H not changed
The height of the Mercury column in a barometer is 756 mm Hg on a cloudy day. Calculate the atmospheric pressure at that time in pascal.
(Density of mercury, p=13600 kg m-³ and Gravitational acceleration, g=9.81 ms-²)
100865 Pa
100862 Pa
100869 Pa
The pressure of the gas in the container can be measured by using
Thermometer
Manometer
Barometer
A Mercury manometer is connected to a steel cylinder containing compressed gas. The pressure of the compressed gas and the atmospheric pressure are 180 kPa and 101 kPa respectively. Calculate the difference in height between two Mercury columns in the manometer.
(Density of Hg, P=13600 kg m-³ and Gravitational acceleration, g=9.81 ms-²)
60.0 cm
58.2 cm
59.2 cm
57.2 cm
What is the meaning of Pascal's principle?
The pressure applied on an enclosed fluid is transmitted uniformly in all directions in the fluid.
The pressure applied on a closed fluid is transmitted strongly in all directions in the fluid.
The formula for Pascal's principle is
F2/A1 = F1/A2
F2/A2 = F1/A1
In a hydraulic system, an input force of 4.0 N acts on a piston with surface area 0.50 cm². Calculate the output force produced on a piston with surface area 6.4 cm².
50.0 N
52.2 N
51.2 N
Archimedes' principle state that
an object which is fully immersed in a fluid will experience a buoyant force is more than the weight of fluid displaced.
an object which is partially or fully immersed in a fluid will experience a buoyant force equal to the weight of fluid displaced.
Which is correct?
Weight of water displaced > Weight of the boy + Weight of float
Weight of water displaced = Weight of the boy + Weight of float
Volume of water displaced = Volume of the boy + Volume of float
Volume of water displaced > Volume of the boy + Volume of float
A small boat displaces 3.8 × 10-² m³ of sea water. Calculate the buoyant force acting on the boat.
(Density of sea water, p=1050 kg m-³ and Gravitational acceleration,g=9.81 ms -²)
391.4 N
390.4 N
392.4 N
The meaning of Bernoulli's principle is
the velocity of a fluid increase, the pressure in the fluid decrease and vice versa.
the velocity of a fluid increase, the pressure in the fluid increase and vice versa
The curved path taken by the ball is due to
Equilibrium of forces
Bernoulli's principle
Archimedes' principle
