Fluida Statis Static Fluids

Open Ended

NIM

Multiple Choice

The vessels shown above all contain water to the same height. Rank them according to the pressure exerted by the water on the vessel bottoms, least to greatest.

• 1,2,3,4

• 3,4,2,1

• 4,3,2,1

• 2,3,4,1

• All pressures are the same

Multiple Choice

Materials that can flow and take the shape of their containers include…

• Both gases & liquids

• Liquids

• Gases

• Neither gases nor liquid

Multiple Choice

What is the formula for hydrostatic pressure (Ph)?

• Ph = ρ g h

• Ph = g h ρ

• Ph = h ρ g

• Ph = g ρ h

Multiple Choice

What is the formula for hydrostatic pressure?

• Ph = ρ g h

• Ph = g h ρ

• Ph = h g ρ

• Ph = ρ h g

Multiple Choice

What is the formula for total pressure in a fluid?

• P_total = P_h + P_atm

• P_total = P_h - P_atm

• P_total = P_atm / P_h

• P_total = P_h * P_atm

Multiple Choice

What does the hydrostatic pressure law state about the pressure at points that are horizontally aligned?

• It is always zero

• It is equal at all points

• It varies with depth

• It depends on the fluid type

Multiple Choice

What does the hydrostatic pressure equation Ph1 = Ph2 imply about the relationship between pressure and height in a fluid?

• Pressure increases with height

• Pressure is constant at all levels

• Pressure decreases with height

• Pressure is equal at all points of the same level

Multiple Choice

Given the water density of 1000 kg/m³ and gravitational acceleration of 10 m/s², what is the hydrostatic pressure at a depth of 15 m?

• 15000 Pa

• 10000 Pa

• 5000 Pa

• 20000 Pa

Fill in the Blanks

According to Pascal’s principle, in a hydraulic lift, the pressure exerted on a piston produces an equal increase in pressure on another piston in the system. If the second piston has an area 10 times that of the first, the force on the second piston is

times greater, though the pressure is the same as that on the first piston.

Fill in the Blanks

Jika massa jenis air 1000 kg/m3 dan percepatan gravitasi bumi adalah 10 m/s2, tentukan tekanan hidrostatis yang dialami ikan?

If the density of water is 1000 kg/m3 and the acceleration due to gravity is 10 m/s2, determine the hydrostatic pressure experienced by the fish?

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Ikan berenang pada kedalaman 15 m di bawah permukaan air laut . Tentukan tekanan hidrostatis ikan jika percepatan gravitasi bumi 10 m/s2 dan jika massa jenis air laut adalah 1.000 kg/m3!

A fish swims at a depth of 15 m below sea level. Determine the hydrostatic pressure of the fish if the acceleration due to gravity is 10 m/s2 and if the density of seawater is 1,000 kg/m3!

Multiple Choice

How would the pressure at a depth of $$15 \, \text{m}$$ compare between freshwater and seawater, assuming seawater is denser?

• Pressure in freshwater is higher

• Pressure in seawater is higher

• Pressure is the same in both

• Cannot be determined without specific densities

Multiple Choice

What is the hydrostatic pressure experienced by the fish at a depth of 15 meters?

• 100,000 N/m²

• 150,000 N/m²

• 200,000 N/m²

• 50,000 N/m²

Fill in the Blanks

Sebuah pipa U diisi dengan minyak dan Raksa. Jika ketinggian raksa h1 adalah 1,6 cm, maka tentukanlah ketinggian minyak (h2 ). Diketahui massa jenis raksa dan minyak berturut-turut adalah 13,6 g/cm3 dan 0,8 g/cm3

A U-tube is filled with oil and mercury. If the height of the mercury h1 is 1.6 cm, then determine the height of the oil (h2). It is known that the densities of mercury and oil are 13.6 g/cm3 and 0.8 g/cm3, respectively.

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Ke dalam sebuah pipa U dimasukkan air dan minyak sehingga dicapai keadaan stabil seperti pada gambar di bawah ini. Massa jenis air dan minyak berturut-turut adalah 1000 kg/m3 dan 800 kg/m3. Tentukanlah perbedaan ketinggian air dan minyak (Δh).

Water and oil are poured into a U-tube to achieve a stable state as shown in the figure below. The densities of water and oil are 1000 kg/m3 and 800 kg/m3, respectively. Determine the difference in height between the water and oil (Δh).

Multiple Choice

The brake pedal is very small but the driver is able to stop the car because when pressing on the pedal 

• the pressure is exerted evenly through the fluid to all 4 brake pads.
• Pascal's principle is being demonstrated.
• this is hydraulics in action!
• all of these options.

Multiple Choice

According to Pascal’s principle, in a hydraulic system a pressure exerted on a piston produces an equal increase in pressure on another piston in the system. If the second piston has an area 10 times that of the first, the force on the second piston is 10 times greater, though the pressure is the same as that on the first piston.

• True
• False

Multiple Choice

State the formula for calculating pressure using Pascal's principle.

• P = F/A

• P = F*d

• P = F/m

• P = F/V

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Jari-jari penampang kecil dongkrak = 2 cm, besar = 25 cm.Mobil bermassa 2000 kg diangkat. Berapa gaya pada penampang kecil?

A hydraulic jack has a small radius of 2 cm and large radius of 25 cm. What force is needed to lift a 2000 kg car?

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Tekanan maksimum dongkrak = 10 atm.Diameter keluaran = 20 cm. Berapa massa maksimum yang dapat diangkat?

The maximum gauge pressure is 10 atm. For a 20 cm output diameter, find the maximum mass that can be lifted.

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Massa jenis air laut 1025 kg/m3 , hitunglah volume batu yang tercelup ke dalam air laut jika berat air laut yang dipindahkan oleh batu sebesar 2 Newton !

The density of sea water is 1025 kg/m3, calculate the volume of a rock immersed in sea water if the weight of the sea water displaced by the rock is 2 Newtons!

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Sebuah benda ketika di udara beratnya 500 N. Ketika dicelupkan ke dalam air, beratnya menjadi 400 N. Tentukan massa jenis benda jika massa jenis air 1000 kg/m³.

An object weighs 500 N in air and 400 N in water. Determine the density of the object if the density of water is 1000 kg/m³.

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75% volume gabus tercelup dalam air. Jika massa jenis air adalah 1 g/cm³, tentukan massa jenis gabus.

75% of a cork’s volume is submerged in water. If water density is 1 g/cm³, find the density of the cork.