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Water adhesion

  • HESI A2
  • Biology
  • Multiple choice
  • Difficulty 3 of 5

Question

A drop clings to the underside of a glass slide after the slide is lifted. Which interaction is an example of adhesion?

  1. Water molecules attracting each other✗ Incorrect

    That interaction is cohesion.

  2. Water attracting the glass✓ Correct

    Attraction to the glass illustrates adhesion.

  3. Water molecules forming a bead✗ Incorrect

    The molecules holding together illustrate cohesion.

  4. Water attracting more water✗ Incorrect

    Attraction within water is cohesion.

Answer

B. Water attracting the glass

Rationale

The glass and water are different substances. Their attraction is called adhesion.

RememberAdhesion connects water with another material.

Sources

  • Adhesion and Cohesion of Water U.S. Geological Survey · License: US government work (public domain) · Retrieved · Adhesion and Cohesion of Water

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