words per minute
9
sadman123
00:00
Speed
Conduction is the transfer of heat energy through a substance
by particle collision. There is no net movement of particles.
The particles in the hottest part of a material, such as a metal
rod, vibrate further from their usual positions. Collisions with
lower-energy particles transfer energy. Ultimately, the average
kinetic energy of all the particles becomes the same – the
substance reaches thermal equilibrium.