Is a book falling from shelf kinetic or potential?

A book falling from a shelf is demonstrating both kinetic and potential energy. Here's why:

* Potential Energy: While the book is on the shelf, it has potential energy due to its position relative to the ground. This is called gravitational potential energy. The higher the shelf, the more potential energy the book has.

* Kinetic Energy: As the book falls, its potential energy is converted into kinetic energy. Kinetic energy is the energy of motion. The faster the book falls, the more kinetic energy it has.

So, the book is a great example of the conversion of energy from potential to kinetic.