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------------------------------------------------ Select the correct answer.

Brian is repairing an old alarm clock. He needs to replace a device that converts electric energy into sound energy. Which of these devices should he use?

A. battery
B. buzzer
C. motor
D. switch

Brian should use a buzzer to convert electric energy into sound energy for the alarm clock. A buzzer is designed for this specific purpose. Other options do not provide this conversion.

Explanation:

Choosing the Right Device for Sound Energy Conversion

In the scenario where Brian is repairing an old alarm clock, he needs a component that can convert electric energy into sound energy. Among the options provided:

A. Battery - A battery stores electric energy but does not convert it into sound.
B. Buzzer - A buzzer is specifically designed to convert electric energy into sound energy, making it the correct choice.
C. Motor - An electric motor transforms electric energy into mechanical energy, not sound.
D. Switch - A switch controls the flow of current but does not convert energy types.

Therefore, the best option for Brian to use is a buzzer.

Learn more about sound energy conversion here:

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