1.
A) bronze B) steel C) sterling silver D) zinc 2.
A) aluminum B) copper C) lead D) chromium 3.
A) electrical conductivity B) malleability C) good heat insulator D) chemical reactivity 4.
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A) improve the strength of the material. B) reduce production costs. C) increase the density of the crystal. D) control conductivity. 5.
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A) n-type semiconductor. B) alloy. C) integrated circuit. D) p-type semiconductor. 6.
A) light weight B) electrical conductivity C) chemical resistance D) waterproof 7.
A) alloy B) ceramic C) polymer D) composite 8.
A) integrated circuit B) computer chip C) transistor D) composite 9.
A) arsenic B) iron C) chlorine D) copper 10.
A) alloys B) ceramics C) composites D) polymers
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