Within the alarm clock seen here, energy is transformed. it is time to get up! the alarm clock goes off. what are the energy transformations taking place in your alarm clock?
a) electrical to magnetic to sound
b) electrical to mechanical to sound
c) electrical to mechanical to light
d) chemical to electrical to mechanical

The correct answer is B) Electrical to mechanical to sound.

Alarm clock runs due to the electrical energy. Due to the electric current, the electric motor rotates the blade. It means that the electrical energy is converted into mechanical energy.

The mechanical energy finally generates vibrations which cause sound.  

Thus, energy transformation which takes place in alarm clock will follow the order-

Electrical to mechanical to sound.