density is the amount of _____ in a certain volume.

mass matter substances particles

Grade 8 Fluids Quiz

Approved & Edited by ProProfs Editorial Team

At ProProfs Quizzes, our dedicated in-house team of experts takes pride in their work. With a sharp eye for detail, they meticulously review each quiz. This ensures that every quiz, taken by over 100 million users, meets our standards of accuracy, clarity, and engagement.

Learn about Our Editorial Process

| Written by Ashleyashley

Ashleyashley

Community Contributor

Quizzes Created: 1 | Total Attempts: 7,279

Questions: 13 | Attempts: 7,290 | Updated: Mar 22, 2023

Questions

Settings

Create your own Quiz

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

Questions and Answers

1.

Fluid is any substances that flows: includes gases and solids
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
fluids are any substances that flows it only inludes gases and liquids because they are classified as FLUIDS because they both can be poured.

Rate this question:

3
3
2.

Is this ALL right ( if one is incorret then mark false, but if they are all correct then mark true) solids: tightly packed together : has definit shape and volumeliquids: are close together: definite shape but no definit volume and takes shape of the containergases: are very far apart: has definite volume but no definite shape
- A.
  
  True
- B.
  
  False
Correct Answer
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)

Rate this question:

0
1
3.

Viscosity is how fast the fluid will flow. It all depends on the "thickness" or "thinness"
- A.
  
  True
- B.
  
  False
Correct Answer
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.

Rate this question:

5
2
4.

Viscosity is measured by the flow rate
- A.
  
  True
- B.
  
  False
Correct Answer
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.

Rate this question:

6
1
5.

The ______ acting prependicular to a specific surface area.
- A.
  
  Pressure
- B.
  
  Area
- C.
  
  Force
Correct Answer
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.

Rate this question:

2
0
6.

Hydrolic system : the pressure transmitted through __________
- A.
  
  Gas
- B.
  
  Liquid
- C.
  
  Solid
Correct Answer
B. Liquid

Explanation
it is bascially the pressure transmitted by liquids.

Rate this question:

3
1
7.

Pneumatic is the study of pressure by transmitting pessure by using gas
- A.
  
  True
- B.
  
  False
Correct Answer
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.

Rate this question:

2
1
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
Correct Answer
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.

Rate this question:

2
2
9.

Density is the amount of _____ in a certain volume.

Correct Answer
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.

Rate this question:

4
4 25
10.

_______ is the tendency to float

Correct Answer
bouyancy

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.

Rate this question:

3
4 7
11.

Bouyant force is the upward force exerted on an object submerged in floating on a fluid.
- A.
  
  True
- B.
  
  False
Correct Answer
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.

Rate this question:

3
0
12.

Archemidis principle : t is a scientific fact that the _________ acting on a submerged object equal thw weight of the fluid.

Correct Answer
bouyant 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.

Rate this question:

0
4 5
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
Correct Answer
A. Yes

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

Rate this question:

0
1

Grade 8 Fluids Quiz

Fluid is any substances that flows: includes gases and solids

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

Viscosity is measured by the flow rate

The ______ acting prependicular to a specific surface area.

Hydrolic system : the pressure transmitted through __________

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

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.

Density is the amount of _____ in a certain volume.

_______ is the tendency to float

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

Archemidis principle : t is a scientific fact that the _________ acting on a submerged object equal thw weight of the fluid.

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