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 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078785337/193827/614_767_q4_q5.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (40.0K)</a>]]>
A) improve the strength of the material. B) reduce production costs. C) increase the density of the crystal. D) control conductivity. 5 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078785337/193827/614_767_q4_q5.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (40.0K)</a>]]>
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
.
