Question

heat is a result of which of these? density and weight particle motion

Explanation:

Heat is a form of energy. According to the kinetic theory of matter, heat is related to the motion of particles. The more particles move (vibrate, translate, etc.), the more heat energy is present. Density is mass per unit volume and weight is a force due to gravity acting on mass. Neither density nor weight directly cause heat. Particle motion (kinetic energy of particles) is what heat is associated with.

Answer:

particle motion