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

Answer 1

The correct answer is A. air, wood.

In this comparison, the molecules in air (a gas) have more kinetic energy and move more freely compared to the molecules in wood (a solid), which are more tightly packed and have limited movement.