Adhesion, Cohesion & Surface Tension

Front

What is adhesion?

Back

Adhesion is the attraction between water molecules and other substances.

Front

What is cohesion?

Back

Cohesion is the attraction between water molecules to each other.

Front

What is surface tension?

Back

Surface tension is the cohesive force at the surface of a liquid that makes it behave like a stretched elastic membrane.

Front

What type of bond is responsible for water's unique properties?

Back

Hydrogen bonds are responsible for water's unique properties.

Front

Is water a polar or nonpolar molecule?

Back

Water is a polar molecule.

Front

What does it mean for a molecule to be polar?

Back

A polar molecule has a partial positive charge on one side and a partial negative charge on the other side.

Front

What is capillary action?

Back

Capillary action is the ability of water to flow in narrow spaces against gravity, due to adhesion and cohesion.

Front

How does temperature affect surface tension?

Back

As temperature increases, surface tension decreases.

Front

What is an example of adhesion in nature?

Back

Water droplets sticking to a leaf is an example of adhesion.

Front

What is an example of cohesion in nature?

Back

Water forming droplets on a surface is an example of cohesion.