Question

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

Answer 1

The correct answer is D. air, wood.

In this choice, the molecules in air (a gas) move more freely and have higher molecular motion compared to the molecules in wood (a solid), which are more tightly bound and have limited movement.