Why is kinetic energy the answer for energy of motion?

Answer 1

Because the definition of "kinetic" energy is the Energy of [atomic] motion.

Answer 2

Kinetic energy is the energy of motion because it is associated with the motion of an object based on its velocity and mass. The faster an object is moving or the heavier it is, the more kinetic energy it possesses. This energy is converted into other forms during interactions like collisions.

Answer 3

Kinectic is energy is basically the energy of action. Potential energy is the possibility for action. Mechanical energy is basically the energy of movement and movement is an action.

Answer 4

Mechanical energy is the energy possessed because of the motion and position of an object. Sound is the vibration (motion) of particles.