The forces of attraction between particles change with temperature due to the changes in the kinetic energy of the particles. As temperature increases, the average kinetic energy of the particles also increases, which leads to increased motion and vibration of the particles.

At higher temperatures:

- Particles have higher kinetic energy, so they move faster and collide more frequently.

- The increased motion disrupts the ordered arrangements and weakens the attractive forces between particles, causing the material to expand or become less dense.

At lower temperatures:

- Particles have lower kinetic energy, so they move slower and collide less frequently.

- The reduced motion allows the attractive forces between particles to become stronger, causing the material to contract or become denser.

In summary, as temperature increases, the forces of attraction between particles weaken due to increased kinetic energy and disruption of ordered arrangements, while as temperature decreases, the forces of attraction between particles strengthen due to reduced kinetic energy and increased organization of the particles.