L3 Viscosity

What is viscosity?

• Viscosity is a measure of a fluid's ability to boil.

• Viscosity is a measure of a fluid's colour intensity.

• Viscosity is a measure of a fluid's electrical conductivity.
• Viscosity is a measure of a fluid's ability to evaporate quickly.
• Viscosity is a measure of a fluid's resistance to flow.

The more viscous a fluid is, the slower it will flow.

• True

• False

Low viscosity can be described as...

• Liquids that flow quickly

• Liquids that flow slowly

High viscosity can be described as...

• a liquid that flows slowly

• a liquid that flows quickly

What are factors that make one fluid flow faster than another?

• particle size and shape

• attraction of particles

• temperature

• freezing rate

• particle colour and texture

Fluids made of ​ (a)   particles have a ​ (b)   viscosity, so they can easily move past each other.

• small
• lower
• big
• higher

Particles of the same substance that are attracted to one another is called:

• atoms
• adhesion

• cohesion

• adhesive

This property causes fluids to stick to the surfaces of materials they come in contact with.

• Repulsion
• Absorption
• Expansion
• Cohesion
• Adhesion

The ​ (a)   of a liquid will ​ (b)   when its temperature ​ (c)   .

• viscosity
• decrease
• increases
• density
• buoyancy
• increase
• decreases

The viscosity of a gas ​ (a)   when the temperature ​ (b)   .

• increases
• decreases