6
QuizMultiple Choice

Metalloids — Unit test

Question 6 • GA-GSE Physical Science A

Solar panels convert light energy from sunlight into electrical energy. What material is most likely used in solar panels, and why?

Answer
A
A nonmetal is used because it is a semiconductor and can become more conductive when more light shines on it.
B
A metalloid is used because it is a good conductor but can become less conductive when more light shines on it.
C
A metalloid is used because it is a semiconductor and can become more conductive when more light shines on it.
D
A nonmetal is used because it is a poor conductor but can become more conductive when more light shines on it.

Explanation

Solar panels commonly use silicon, which is a metalloid and a semiconductor. When light shines on it, the light provides energy that frees charge carriers, allowing it to conduct electricity more readily. Therefore, choice C correctly describes both the material and how its conductivity changes.

AI-written and checked against the verified answer.

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