Fluid Basicc(s)

Question 1

What is a Fluid?

Answer 1

Fluid - materials that have no fixed shape and are free to flow, such as liquids and gases

Question 2

State the 5 main points of the particle theory

Answer 2

1. All matter is made of tiny particles
2. Particles have empty spaces between them
3. Particles are moving randomly all the time
4. Particles move faster and spread further apart when they are heated
5. Particles attract each other

Question 3

What is Viscosity? How does it affect flow rate?

Answer 3

Viscosity - A measure of how easily a fluid’s particles are able to slide past one another, or how “thick” a liquid is. The more viscous a liquid is, the slower flow rate it has, since it takes longer for the liquid to move because the particles have a hard time moving past eachother

Question 4

What is Cohesion? How does it affect flow rate?

Answer 4

Cohesion - A measure of how strongly the particles of a fluid attract each other. The higher cohesion, the lower flow rate, since if a fluid has a higher cohesion, it naturally will want to stay in one place

Question 5

What is Adhesion? How does it affect flow rate

Answer 5

Adhesion - The attraction between the particles of one substance and the particles of another substance. If adhesion is high in a fluid, it will have a slower flow rate, since the particles will try to adhere to whatever surface they’re on

Question 6

What is Surface Tension? How does it affect flow rate?

Answer 6

Surface Tension - The strong attraction among the particles that form the surface of a liquid, higher surface tension means higher cohesion, which means lower flow rate

Question 7

What is Laminar Flow? What is Turbulent flow?

Answer 7

Laminar Flow - A smooth pattern of flow, streamlined

Turbulent Flow - An irregular, un-smooth pattern of flow, not streamlined