Cohesion, Adhesion, Surface tension

Front

What is the term for the attraction between water molecules?

Back

Cohesion

Front

What is adhesion in the context of water?

Back

The attraction of water molecules to other substances.

Front

Define surface tension.

Back

The tightness across the surface of water caused by the attraction of water molecules to each other.

Front

How does cohesion contribute to water's properties?

Back

Cohesion allows water molecules to stick together, which is essential for processes like water transport in plants.

Front

What role does adhesion play in capillary action?

Back

Adhesion helps water molecules stick to the walls of plant vessels, aiding in the upward movement of water.

Front

Explain capillary action.

Back

The ability of water to flow in narrow spaces against gravity, due to the combined effects of cohesion and adhesion.

Front

What is the significance of surface tension in everyday life?

Back

Surface tension allows small objects, like paper clips, to float on water and enables insects to walk on water.

Front

How does temperature affect surface tension?

Back

As temperature increases, surface tension decreases because the kinetic energy of water molecules increases.

Front

What is the relationship between cohesion and surface tension?

Back

Cohesion contributes to surface tension by causing water molecules at the surface to be pulled inward, creating a 'skin' effect.

Front

Describe how cohesion and adhesion work together in plants.

Back

Cohesion helps water molecules stick together while adhesion allows them to stick to plant surfaces, facilitating water transport.