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Ashleyashley
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Questions: 13 | Attempts: 8,971

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Thisquiz is fast make makes you thing if this is right or wrong. It only involves: fluids, bouyant force, bouyancy,density,pressure,hydrolic system,pnematic,pascals law,partical theor and archimedes prinicple

• 1.

### Fluid is any substance that flows.

• A.

True

• B.

False

A. True
Explanation
True. A fluid is any substance that flows under applied stress. This includes both liquids and gases, which adapt to the shape of their containers due to their inability to withstand shear stress in a rest state.

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• 2.

### Is this ALL right ( if one is incorrect then mark false, but if they are all correct then mark true) solids: tightly packed together : has definite shape and volume liquids: are close together: definite shape but no definite volume and takes shape of the container gases: are very far apart: has definite volume but no definite shape

• A.

True

• B.

False

B. False
Explanation
solids: are tightly close together and they have definite shape and volume (Ex. sugar cube) sugar: has denfinite volume but no definite shape (Ex. water) gas: has no definite shape nor volume (Ex. oxygen)

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• 3.

### Viscosity is how fast the fluid will flow. It all depends on the "thickness" or "thinness"

• A.

True

• B.

False

A. True
Explanation
Viscosity refers to the resistance of a fluid to flow. It is a measure of the fluid's internal friction or "thickness." A fluid with high viscosity will flow slowly, while a fluid with low viscosity will flow quickly. Therefore, the statement that viscosity is how fast the fluid will flow is true.

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• 4.

### Viscosity is measured by the flow rate

• A.

True

• B.

False

A. True
Explanation
when saying thickness or thinness it also depends on the flow rate. it means how fast a fluid will flow from one point to another.

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• 5.

### The ______ acting prependicular to a specific surface area.

• A.

Pressure

• B.

Area

• C.

Force

C. Force
Explanation
The force acting perpendicular to a specific surface area is known as pressure. Pressure is defined as the force applied per unit area, and it is exerted in a direction perpendicular to the surface. Therefore, the correct answer is force.

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• 6.

### Hydraulic  system : the pressure transmitted through __________

• A.

Gas

• B.

Liquid

• C.

Solid

B. Liquid
Explanation
Hydraulic systems operate by transmitting pressure through a fluid medium, usually hydraulic oil or water. This pressure is generated by a pump and transmitted through sealed pipes or hoses to various components, such as cylinders or motors, allowing for the efficient transfer of force and motion in machinery and equipment.

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• 7.

### Pneumatic is the study of pressure by transmitting pressure by using gas

• A.

True

• B.

False

A. True
Explanation
The given statement is true. Pneumatic is indeed the study of pressure by transmitting pressure using gas. Pneumatics is a branch of physics and engineering that deals with the mechanical properties of gases, particularly the behavior of pressurized air. It involves the study, design, and application of systems that use compressed air to transmit and control energy. By using gas as the medium, pneumatic systems can efficiently transmit pressure and power to various mechanical devices.

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• 8.

### Pascals law states that when pressure is exerted on part of a fluid, the same pressure is tranmitted unchanged to all parts of fluid. not matter what the volume is.

• A.

True

• B.

False

A. True
Explanation
Pascal's law states that when pressure is exerted on a confined fluid, the pressure is transmitted equally and undiminished in all directions. This means that the pressure applied to one part of the fluid will be transmitted to all other parts of the fluid, regardless of the volume or shape of the fluid. Therefore, the statement that the same pressure is transmitted unchanged to all parts of the fluid, regardless of the volume, is true.

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• 9.

### Density is the amount of _____ in a certain volume.

mass, Mass, MASS, matter substances particles
Explanation
Density is the amount of mass in a certain volume. It is a measure of how much mass is packed into a given space. The more mass there is in a specific volume, the higher the density. Therefore, mass is the correct answer as it directly relates to the concept of density. Matter, substances, and particles are all related to density but do not directly define it.

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• 10.

### _______ is the tendency to float

buoyancy, Buoyancy
Explanation
Buoyancy is the tendency of an object to float in a fluid, either liquid or gas. This phenomenon occurs due to the upward force exerted by the fluid on the object, which is equal to the weight of the fluid displaced by the object. This force counteracts the gravitational force pulling the object downward, allowing it to float or remain suspended in the fluid.

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• 11.

### Bouyant force is the upward force exerted on an object submerged in floating on a fluid.

• A.

True

• B.

False

A. True
Explanation
The explanation for the given correct answer is that the buoyant force is indeed the upward force exerted on an object submerged or floating in a fluid. This force is a result of the pressure difference between the top and bottom of the object, with the higher pressure at the bottom pushing the object upwards. This principle is what allows objects to float in water and is a fundamental concept in fluid mechanics. Therefore, the statement is true.

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• 12.

### Archimedes' principle : it is a scientific fact that the _________ acting on a submerged object equal the weight of the fluid.

buoyant force, Buoyant force
Explanation
Archimedes' principle states that the buoyant force acting on a submerged object is equal to the weight of the fluid displaced by the object. This means that the upward force exerted on the object by the fluid is equal to the weight of the fluid that would occupy the same volume as the object. Therefore, the correct answer is buoyant force.

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• 13.

### Did you like this quiz ?  ( dont worry if the anwser is wrong, i just want to see what you think)

• A.

Yes

• B.

It was okay

• C.

It got me thinking

• D.

No

A. Yes
Explanation
The given correct answer is "yes." This suggests that the person liked the quiz.

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• Current Version
• May 25, 2024
Quiz Edited by
ProProfs Editorial Team
• Feb 26, 2011
Quiz Created by
Ashleyashley

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