Liquid Behavior and Capillary Action

What is capillary action?

• Liquid flowing against gravity up a narrow tube.

• Liquid flowing with gravity down a wide tube.

• Liquid evaporating from a surface.

• Liquid expanding due to heat.

What is the term for the attraction between molecules within the liquid itself?

• Adhesive forces.

• Cohesive forces.

• Gravitational forces.

• Surface tension.

Which two forces combine to create capillary action?

• Gravitational and magnetic forces.

• Cohesive and adhesive forces.

• Frictional and normal forces.

• Centripetal and centrifugal forces.

What is the term for the attraction between the liquid and the surface of the tube?

• Cohesive forces.

• Adhesive forces.

• Repulsive forces.

• Surface tension.

What happens if adhesive forces are stronger than cohesive forces in a liquid within a tube?

• The liquid will fall.

• The liquid will remain stagnant.

• The liquid will rise.

• The liquid will evaporate.

What is the primary reason water flows downwards when poured into a container?

• Capillary action.

• Surface tension.

• Gravity.

• Atmospheric pressure.

When a liquid is poured into a wide container, what is the shape of its surface at equilibrium?

• Concave.

• Convex.

• Flat.

• Irregular.

What is the primary reason liquids rise in narrow tubes against gravity?

• Atmospheric pressure pushing it up.

• The liquid's inherent stickiness to the tube walls.

• The tube's material repelling the liquid.

• The liquid's density.

In a capillary tube set with tubes of varying diameters, which tube will show the highest liquid rise?

• The widest tube.

• The narrowest tube.

• All tubes will have the same liquid height.

• The tube with the roughest surface.

How does lowering the pressure affect a liquid's boiling point?

• It increases the boiling point.

• It lowers the boiling point.

• It has no effect on the boiling point.

• It causes the liquid to freeze.