Question

1. the movement of the liquid in a thermometer shows changes in temperature. an increase in temperature indicates the molecules in the liquid

a. moved slower and closer together
b. moved faster and spread farther apart
c. individual molecules decreased in size when heated
d. individual molecules increased in size when heated

Explanation:

When temperature increases, the thermal energy of liquid molecules rises, increasing their kinetic energy. This makes them move faster, and as they move more vigorously, they spread farther apart, causing the liquid in the thermometer to expand and rise. Molecules do not change in size with temperature changes, and slower, closer movement occurs with cooling.

Answer:

b. moved faster and spread farther apart