What happens to some materials when the kinetic energy of their particles is decreased they contract they expand the conduct a note
When the kinetic energy of particles in a material is decreased, the particles slow down and move closer together. This decrease in kinetic energy causes the material to contract, or become more dense. As a result, the material may shrink in size.
On the other hand, when the kinetic energy of particles is increased, the particles move faster and farther apart. This increase in kinetic energy causes the material to expand, or become less dense. As a result, the material may increase in size.
Additionally, changes in temperature can also affect the kinetic energy of particles in a material. For example, when a material is heated, the particles gain kinetic energy and move faster, causing the material to expand. Conversely, when a material is cooled, the particles lose kinetic energy and move slower, causing the material to contract.