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Emma sings into a microphone. The sound is transferred from the microphone to a loudspeaker that is plugged into the wall. Her voice comes out of the loudspeaker and sounds much louder than before.

In this system, sound energy is being transformed into _______ energy and then back into _______ energy.
A.
electrical; sound
B.
mechanical; sound
C.
electrical; mechanical
D.
heat; sound

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
16 days ago

In this system, sound energy is being transformed into **A. electrical; sound** energy.

Initially, Emma's voice (sound energy) is captured by the microphone and converted into electrical energy. Then, that electrical energy is converted back into sound energy by the loudspeaker, amplifying her voice.