True or false on surface tension

Exercise and reference answers

Questions

1. Statement is true

   No

   Statement

   Gases have free surfaces of their own.

2. Statement is true

   Yes

   Statement

   Surface tension is a force per unit length.

3. Statement is true

   Yes

   Statement

   Water forms droplets on a lotus leaf.

4. Statement is true

   No

   Statement

   Mercury wets a glass surface well.

5. Statement is true

   Yes

   Statement

   A sphere has the least area for its volume.

6. Statement is true

   No

   Statement

   Pressure inside a drop is lower than outside.

Instructions

Decide whether each statement is true or false.

Explanation