Question 20 (1 point)
Betsy depends on her electric alarm clock every morning to get up in time for school. What energy transformation happens in Betsy's alarm clock to wake her up in the morning?
a
electrical energy is converted to thermal energy
b
sound energy is converted to electrical energy
c
electrical energy is converted to sound energy
d
chemical energy is converted to kinetic energy
c
electrical energy is converted to sound energy
c. electrical energy is converted to sound energy
The correct answer is c) electrical energy is converted to sound energy.
To find the answer, we need to consider the function of an alarm clock. An alarm clock typically uses electrical energy to produce a sound that wakes us up. So, in Betsy's alarm clock, electrical energy is indeed being transformed into sound energy to wake her up in the morning.
Therefore, the correct answer is c) electrical energy is converted to sound energy.