The video explains viscosity, a measure of friction between liquid layers, affecting flow resistance. It compares the viscosity of honey, oil, and water, illustrating how thicker liquids have higher viscosity. The video also discusses how friction impacts movement, using a bicycle on wet and dry paths as an example.

What is viscosity in the context of liquids?

• The color of a liquid

• The density of a liquid

• The temperature of a liquid

• The friction between layers of a liquid

Which of the following liquids is more viscous than water?

• Milk

• Tea

• Juice

• Honey

What does viscosity measure in a liquid?

• The color change

• The temperature change

• The resistance to flow

• The speed of flow

How does water affect the friction between a bicycle wheel and the path?

• It increases friction

• It decreases friction

• It has no effect

• It makes the path sticky

Why is it harder to stop a bicycle on a wet path?

• The path becomes sticky

• The water creates a barrier

• The path becomes rough

• The wheels become heavier