* Potential Energy: At the top of the hill, the object has potential energy due to its position relative to the ground. This is gravitational potential energy, which depends on the object's mass, height, and the acceleration due to gravity.
* Kinetic Energy: As the object rolls down the hill, its potential energy is converted into kinetic energy. Kinetic energy is the energy of motion, and it increases as the object's speed increases.
In summary:
* At the top of the hill, the object has mostly potential energy.
* As it rolls down, potential energy is converted into kinetic energy.
* At the bottom of the hill, the object has mostly kinetic energy.
The total amount of energy (potential + kinetic) remains constant, assuming no energy is lost to friction. This is an example of the principle of conservation of energy.
