Question

A student depends on her electric alarm clock every morning to get up in time for school.



What energy transformation happens for the student's alarm clock to wake her up in the morning?

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1 point
chemical energy is converted to kinetic energy
mechanical energy is converted to electric energy
electrical energy is converted to mechanical energy
electrical energy is converted to thermal energy

Answer 1

electrical energy is converted to mechanical energy

The alarm uses electrical energy to move a speaker or buzzer (mechanical vibrations) that produce sound to wake the student.