Question

7. What machine changes electrical energy into light and sound energy? A. battery B. lightbulb C. alarm clock D. apple

Answer 1

Answer:

lightbulb

Explanation:

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Answer 2

Answer:

C. alarm clock

Explanation:

An electrical energy is capable into converting into other forms of energy and this includes the electrical energy of the alarm clock is converted to light and sound energy. Other examples include, light bulb which when turn on converts electrical  energy into light energy and thermal energy.