Non-Newtonian Fluid Properties and Behavior

The video tutorial explains the differences between Newtonian and non-Newtonian fluids, focusing on viscosity and how it changes with applied force. Newtonian fluids like water have constant viscosity, while non-Newtonian fluids like cornstarch suspensions and ketchup change viscosity with force. The tutorial provides examples and a DIY guide to making a non-Newtonian fluid at home.

What characteristic defines Newtonian fluids?

• Their viscosity changes with temperature.

• They can only be liquids.

• They are always thicker than non-Newtonian fluids.

• Their viscosity remains constant regardless of applied force.

Which of the following fluids has a higher viscosity?

• Water

• Milk

• Chocolate syrup

• Oil

What happens to the viscosity of a dilatant fluid when more force is applied?

• It decreases.

• It remains the same.

• It increases.

• It becomes zero.

In a cornstarch and water suspension, what role do water molecules play during weak force application?

• They solidify.

• They evaporate.

• They act as lubricants.

• They act as barriers.

What happens to the cornstarch molecules when a strong force is applied?

• They slide past each other easily.

• They dissolve in water.

• They form a solid-like structure.

• They evaporate.

What is the result of having too many water molecules in a cornstarch suspension?

• The suspension behaves as a solid.

• The suspension behaves as a liquid.

• The suspension becomes magnetic.

• The suspension becomes gaseous.

What is the visual representation of water molecules in the cornstarch suspension?

• Squares

• Triangles

• Circles

• Hexagons

What is a key characteristic of pseudoplastic fluids?

• Their viscosity increases with force.

• They do not flow.

• Their viscosity decreases with force.

• They are always solid.

Why does ketchup flow out of the bottle when force is applied?

• Its viscosity increases.

• Its viscosity decreases.

• It evaporates.

• It becomes a solid.

What is required to make a non-Newtonian fluid at home?

• Salt and water

• Sugar and water

• Cornstarch and water

• Flour and water