01. Heat transfer through solids.
Which of these options best explains what happens when a metal is heated:
A – Atoms in the metal absorb energy and move around causing more collisions.
B - The metal atoms expand when they absorb thermal energy
C - Metal atoms absorb energy causing them to vibrate further and any free electrons to collide more.
D – The space between the metal atoms increases causing the object to expand.
Answer C & D