Question

The energy that something has because of its position--a book held 20 feet above the ground has more of this than a book held 5 feet off the ground.

Answer 1

The most common types of energy an object can have are:

- Kinetic energy: energy related to the movement. If an object has velocity, it has kinetic energy. The faster the object, higher is its kinetic energy.

- Potential energy: energy related to the height, to gravity. The higher (bigger height) an object is from a reference point, higher is its potential energy.

So the energy of a book held 20 feet above ground being higher than the energy of a book held 5 feet above ground, this energy is the potential energy.

Therefore the correct option is the third one.