Respuesta :

Of the following given choices;

  • Electrical
  • Sound
  • Mechanical
  • Gravitation

The answer is; gravitational.

When the delivery man pushes the doorbell, he is utilizing mechanical energy. This energy is later converted to electrical energy that travels through a circuit to the inside of the house. An actuator then converts the electrical energy to sound that is heard inside the house.


Answer:gravitational

Explanation: