When two objects push or pull on each other, which type of energy is being transferred?

Mechanical energy

Explanation:

Although energy cannot be created or destroyed, it can be transferred from one system to another, such as between two objects or from an object to its environment. When two objects push or pull on each other, mechanical energy is being transferred. A hammer hitting a nail transfers mechanical energy to the nail, as seen below. Another example is the force of gravity causing two objects to interact from a distance.

Kinetic energy should be right