Science quiz

What is a fluid?

• Materials that have no fixed shape and are free to flow, such as liquids and gasses

• Materials that have a fixed shape and are free to flow, such as liquids and solids

• Materials that have a fixed shape and are free to slow, such as solids and gasses

• Materials that have no fixed shape and are not free to flow, such as liquids and gasses

What are Hydrodynamics?

• Hydrodynamics is a part of fluid dynamics concerned with how liquids move

• Hydrodynamics is a part of fluid mechanics concerned with how gasses move

• Hydrodynamics is a part of aerodynamics concerned with how fluids behave

What is viscosity?

• Viscosity is a measure of how easily a fluid's particles slide past one another

• Viscosity is a measure of how strongly a fluid's particles slide part one another

• Viscosity is a measure of how easily a solid's particles slide past one another

What is flow rate?

• Flow rate is a measure of how quickly fluids move and is measured in a volume per unit time. For example: L/s

• Flow rate is a measure of how slowly fluids move and is measured in a mass per unit time. For example: KG/s

What is the relationship between flow rate and viscosity?

• If the viscosity is high, the flow rate will be slow

• If the viscosity is high, the flow rate will be high

• If the viscosity is slow, the flow rate will be slow

What is cohesion

• Cohesion is a measure of how strongly particles of a fluid are able to slide past one another

• Cohesion is a measure of how weakly particles of a fluid are able to slide past one another

• Cohesion is the attraction between the particles of one substance and the particles of another substance

What is laminar flow?

• Laminar flow is a smooth pattern of flow

• Laminar flow is an irregular, mixing pattern of flow

What is turbulent flow?

• Turbulent flow is a smooth pattern of flow

• Turbulent flow is an irregular, mixing pattern of flow

True of False: An advantage of laminar flow is that its smooth and easy to control while a disadvantage is that its highly sensitive to disturbances and can easily become a turbulent flow.

• True

• False

True of False: An advantage of turbulent flow is that it provides oxygen into the water which organisms need and a disadvantage is that its noisy.

• True

• False