Question

if a metal rod bends and changes shape after being loaded, we call that the
kinetic energy damage collision friction deformation potential energy peak force contact force
breaking point

Explanation:

When a metal rod bends and changes shape after being loaded, this is a physical change in its form. Deformation specifically refers to the change in shape or size of a material under an applied load. Kinetic energy is related to motion, damage implies harm beyond just shape - change (like cracking), collision is an interaction between objects, friction is a force opposing motion, potential energy is stored energy, peak force is the maximum force applied, contact force is a general force when objects are in contact, and breaking point is when the material fails (not just shape - change).

Answer:

deformation