Properties and Behavior of Fluids

This video lesson explores the differences between Newtonian and non-Newtonian fluids. Newtonian fluids, like water and honey, have predictable viscosity that doesn't change with applied force. Non-Newtonian fluids, such as cornstarch solutions, change viscosity when force is applied, behaving more like solids. The lesson includes demonstrations with honey and cornstarch to illustrate these properties, and encourages viewers to conduct their own experiments with different fluids.

What is a characteristic of a Newtonian fluid?

• Its viscosity changes with applied force.

• It flows unpredictably.

• It has a predictable viscosity regardless of force.

• It becomes solid under pressure.

How does warm honey behave when a force is applied?

• It solidifies.

• Its viscosity increases.

• Its viscosity decreases.

• Its viscosity remains unchanged.

What happens to cold honey when tested with a ruler?

• It evaporates.

• It solidifies.

• It behaves like warm honey.

• It becomes more viscous.

What is a key property of Non-Newtonian fluids?

• They are always solid.

• Their viscosity changes with applied force.

• Their viscosity changes with temperature.

• They have a constant viscosity.

How does a cornstarch solution behave when a force is applied quickly?

• It becomes less viscous.

• It flows more easily.

• It evaporates.

• It becomes more viscous.

What unusual behavior does a cornstarch solution exhibit?

• It allows you to jump on it without sinking immediately.

• It remains liquid under all conditions.

• It evaporates when heated.

• It can be broken with a sledgehammer.

What happens if you stand still on a cornstarch solution?

• You will bounce off.

• You will evaporate.

• You will float indefinitely.

• You will eventually sink.

What is an example of a Non-Newtonian fluid that becomes less viscous with force?

• Cornstarch solution

• Honey

• Ketchup

• Water

What is the main difference between Newtonian and Non-Newtonian fluids?

• Non-Newtonian fluids are always solid.

• Newtonian fluids have a predictable viscosity.

• Non-Newtonian fluids have a constant viscosity.

• Newtonian fluids change viscosity with force.

What should you do to discover other Non-Newtonian fluids?

• Ask a teacher.

• Watch more videos.

• Conduct your own fluid experiments.

• Read more books.