The molecules in a steel bar absorb energy and begin moving more quickly. What is most likely happening to the steel bar?

Its temperature is increasing.

It is shrinking.

It is condensing.

Its mass is decreasing.

Question

The molecules in a steel bar absorb energy and begin moving more quickly. What is most likely happening to the steel bar?

 Its temperature is increasing.

 It is shrinking.

 It is condensing.

 Its mass is decreasing.

anonymous · Answer

the first one, the temperature is increasing, this is due to the absorption of energy. Since it absorbed energy the molecules in it will start moving faster...causing the temperature to go up.