Question

classify each of the following as examples of cohesion (c), adhesion (a), or surface tension (st). 2. meniscus formation 3. water drops on a penny 4. spherical raindrops forming 5. a water strider walking on water 6. dew drops on plant leaves 7. wetting of a surface 8. a needle floating on water 9. water droplets 10. a paper towel absorbing water identify each of the following images as an example of cohesion, adhesion, or surface tension.

Explanation:

Cohesion is the attraction between like - molecules, adhesion is the attraction between unlike - molecules, and surface tension is the elastic tendency of a fluid surface. A meniscus forms due to the balance between adhesion and cohesion. Water drops on a penny and spherical raindrops are due to surface tension. Dew drops on leaves and water strider walking on water are also related to surface tension. Wetting of a surface is adhesion. A paper towel absorbing water is adhesion as water molecules are attracted to the paper molecules.

Answer:

1. ST
2. ST
3. ST
4. ST
5. ST
6. A
7. ST
8. ST
9. A