Question

temperature depends on the average kinetic energy of the particles in a sample. how does this help explain why a plasma - based light does not have a high temperature?
no particles in the plasma have high kinetic energy.
the fastest particles have the greatest mass.
most particles in the plasma are heavy, slow, and very low density.
the fastest particles transfer most of their energy through collisions

Explanation:

Temperature is related to average kinetic energy. In plasma - based light, the fastest particles transfer most of their energy through collisions. This means the average kinetic energy of particles doesn't build up to a high level, thus temperature is not high.

Answer:

The fastest particles transfer most of their energy through collisions.