Molecular motion is a measure of the movement of the molecules in a substance. Molecular motion is substantially different between the different states of matter. For example, the molecules in _______ move more than the molecules in _______.

Question

A.
soda, air
B.
wood, air
C.
air, wood
D.
wood, soda

Answer 1

The correct answer is D. wood, soda.

In solids like wood, the molecular motion is restricted, as the molecules are closely packed and vibrate in place. In contrast, in liquids like soda, the molecules have more freedom to move and can flow past one another, demonstrating greater molecular motion.