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Levart [38]
3 years ago
9

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?
Chemistry
2 answers:
notka56 [123]3 years ago
7 0

Answer:

C.) Electrical Energy

Explanation:

The microphone has a device that changes electrical energy into sound energy. The loudness of Bettina’s voice was changed using electrical energy.

jek_recluse [69]3 years ago
4 0
The correct answer is Electrical Energy.

<span>The </span>authentic<span> voice of Bettina is </span>obtained through<span> a transducer, which is the microphone which converts the sound </span>energy<span> to </span>electric<span>. </span>it's far<span> then amplified </span>by<span> an amplifier </span><span>and </span>introduced<span> to the </span>target audience by means of some other<span> transducer, such as the speakers which </span>changes the electrical energy lower back<span> into sound </span>energy<span> at a louder </span>stage.
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