an increase in the size of the copper particles a decrease in the mass of the copper particles an increase in the motion of the copper particles a decrease in the distance between the copper particles
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: In a copper wire, a temperature increase is the result of which of the following?
Possibilities:
- an increase in the size of the copper particles
- a decrease in the mass of the copper particles
- an increase in the motion of the copper particles
- a decrease in the distance between the copper particles

an increase in the motion of the copper particles