Question

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

Explanation:

An alarm clock (like the plugged - in one here) first uses electrical energy. The electrical energy is converted into mechanical energy to move components (e.g., gears). Then, when it goes off, the mechanical energy is transformed into sound energy (the alarm sound). Option A has magnetic which isn't the main transformation here. Option C has light which isn't relevant for an alarm's sound. Option D starts with chemical, but this is a plugged - in clock, so electrical is the initial energy source, not chemical. So B is correct.

Answer:

B. electrical to mechanical to sound