Capillary Attraction Quiz

What is capillary attraction?

• The process of water evaporating quickly.

• The process of water being drawn horizontally or vertically between two close-fitting surfaces.

• The process of water flowing downhill due to gravity.

• The process of water boiling at a lower temperature.

How can capillary attraction cause problems for plumbers?

• It can make pipes rust.

• It can cause water to be drawn up underneath tiles and roof weatherings, leading to leaks.

• It can make water flow too quickly through pipes.

• It can cause pipes to burst under high pressure.

Capillary attraction can also create which problem in appliances?

• Electrical short circuits.

• Loss of the trap seal.

• Overheating.

• Pipe bursting.

What are the two processes needed for capillary attraction to take place?

• Evaporation and condensation.

• Expansion and contraction.

• Adhesion and cohesion.

What does adhesion refer to in the context of capillary attraction?

• The tendency of molecules to stick to each other.

• The process of molecules evaporating.

• The tendency of molecules to stick to surfaces they come in contact with.

• The movement of water downhill due to gravity.

What does cohesion refer to in the context of capillary attraction?

• The process of water boiling.

• The tendency of molecules to stick together.

• The movement of water uphill against gravity.

• The tendency of molecules to repel each other.

What is the meniscus?

• The point where water evaporates.

• The highest point of water in a pipe.

• The lowest point of the curved appearance of water inside a tube.

• The point where water freezes.

How can capillary attraction be used to a plumber's advantage?

• It helps in preventing leaks in pipes.

• It assists in making soldered capillary joints on copper tubes and fittings.

• It helps in the evaporation of water in pipes.

• It prevents the freezing of water in pipes.

What happens when water molecules exhibit adhesion in a glass of water?

• They cause the water to boil.

• They cause the water to form a flat surface.

• They cause the water to stick to the sides of the glass, creating a curved appearance.

• They cause the water to evaporate quickly.

What observation can demonstrate cohesion in water?

• Water sticking to the sides of a glass.

• Water quickly evaporating.

• Over-filling a glass with water and seeing the water rise above the rim without spilling.

• Water boiling at a high temperature.