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2 years ago

14

Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak.

The loudness of Bettina’s voice was changed by what type of energy?

2 answers:

grandymaker [24]2 years ago

7 0

The loudness was increased by the amplifier which converted electrical energy into sound energy.

Sati [7]2 years ago

5 0

C.) Electric Energy

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