8/16 - Cohesion, Adhesion and Surface Tension

Front

What is cohesion?

Back

Cohesion is the attraction between water molecules to other water molecules.

Front

What is adhesion?

Back

Adhesion is the attraction between water molecules and other substances.

Front

What allows a paperclip to float on water?

Back

Surface tension allows a paperclip to float on water when placed gently on the surface.

Front

In which state of matter is surface tension found?

Back

Surface tension is found in liquids.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H₂O.

Front

What is surface tension?

Back

Surface tension is the property of a liquid that allows it to resist an external force due to cohesive forces between liquid molecules.

Front

How does temperature affect surface tension?

Back

As temperature increases, surface tension generally decreases.

Front

What is an example of adhesion?

Back

An example of adhesion is water sticking to the surface of a leaf.

Front

What is the role of polarity in water's properties?

Back

Polarity allows water to dissolve many substances, making it a good solvent.

Front

What happens to cohesion when water is in a narrow tube?

Back

Cohesion causes water to rise in a narrow tube, a phenomenon known as capillary action.