2021年辽宁省鞍山市立山区中考物理模拟试卷（一）（附答案详解）

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2021
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ᦪ<568=ᵯ9⊤>?@ᘤஹᐵஹᵯ'⊤ஹᵯBCᡂᵯ9:)ḄᵯBᵯ9(4)ᵫ⊤H$%&<5;ᵯ9Iᜧ56ḄᵯJIᜧKLMNOPᙳ3(5)<ᵯ90ᵯZᨵ[ᜧḄᵯ'<ᵯ9Iᜧᵯ'\X]^᪷`ᵯabcdeḄᵯ'fdeḄᵯ9ᡂgh$%ᵯ9⊤M:)5;Ḅᵯ9;(6)m|}Z:)Ḅᵯ9pᵯ'᪷`P=U/$%t$F:)ᵯv᳛஺m⚪⌕ὃ:)ᵯ᪷`#ᑖ᪆ᵯ9⊤:)ḄḄᵯ9᪷`ᵯBᵯ9ឤbᑡu£*ᑖ᪆ᵯḄ¤pᵨ¥¦b§¨~©ª«Ḅᐵ¬஺31.ூ~ᫀ௃@?ᱏ¯°5;ᔲ²ᐝ´0.750.3717.5¶ᵯ9⊤
ᦪ஺·=2.5Vᔠ2.5V(t/-2.5V)ᐵS2,SiR஺ூ¨᪆௃¨&(1):)^5;ᵯv᳛ᵯ9⊤>^5;ὶ?@ᘤḄg¾a¿aÀ᝞#ᡠ
&

35pB(2)ᵯ9⊤ஹᵯ'⊤ᙳᨵ
ᦪᵯ^5;MÂᨵ$Nv᳛Ã^ÀᩭÅ@?ᱏ¯°5;ᔲ²ᐝ(3)^5;ᵯ92.3U,⌕¶^5;gƲᐝᵯ92.5U,ᓽIÈ5;ᵯ9IᜧᵯZᵯ']^?@ᐭᵯZḄᵯ?ᱏᔣ´?@(4)<^5;gƲᐝᵫ#Ë%ᵯ'⊤⌱ᵨ^)*ᑖ230.024
ᦪ0.34ᦑ^5;ḄÍbv᳛PZ=U4Z=2.5Vx0.3/1=0.75W;(5)^5;ḄᵯTḼU2ḄᓣWXIᜧᓽTḼ5;Ḅᵯ9ḄIᜧXIᜧ᪷`¥¦b§$%^5;ḄᵯÐÑᔣ´ÒÓ5D,60ஹ7.140ஹ8.330ஹ8.11஺ᡠFᨬ=aCᦪ`ᨵÖ(6)᪷`⊤Zᦪ`5;ᵯ9ᨬ^1.0U,L?@ᘤᐭᵯḄ3ᨬᜧᵯ9UR=U-4=4.5V-1I/=3.5V,LᵯZḄᵯ'0.24?@ᘤḄ3/?=Ø=Ù=17.50(7)Mᵨᵯ9⊤᪷`ὶᵯᔜÛᵯ9ÜÝḄᱯßà^5;pb3ᵯὶá⁚?@ᘤ¶cb3ᵯḄᵯ'/ãäR=2.5V,ᑣL^5;ᵯ9å2.5ËᡠF⚪#Zᨬ¿æ᪾ᑁ^5;ÑÀ᪾ᑁb3ᵯR,´À᪾ᑁᵯ'⊤᝞À#ᡠ
஺ᔠᐵSஹS2,Siá⁚?ᱏ¶ᵯ'⊤
ᦪ/=é=ê=0.254,L^5;ᵯ9å2.5U,ᯠ=ìᔠSiS2,uᵯ'⊤Ḅ
ᑣc^5;ḄÍbᵯ'/a0.254ᑣ^5;Íbv᳛P=2.51/x(/-0.254)஺(8)জᔠᐵSipS3,$2,á⁚?@ᘤḄ?ᱏ¶ᵯ9⊤
ᦪ஻ð=2.5ᓃy36⚓ᐳ37⚓

36LZ,ஹRpᘤiὶᵯ9⊤:5;ᵯ9ᦑ5;gƲᐝঝᔠᐵ52,S1ᢝ?@ᘤ?ᱏPM@uLᵯ9⊤
ᦪU,ᵯḄ¤£ô7ᨵ²õᓄᵯ9⊤:L>RḄ÷ᵯ9ᡠF=ঞ^5;Íbv᳛Ḅ⊤ùôq⚡:UWL=üý஺ᦑ~ᫀ&(1)þ¨᪆(2)@?ᱏ¯°5;ᔲ²ᐝ(3)´(4)0.75(5)0.37(6)17.5(7)þ¨᪆(8)জ¶ᵯ9⊤
ᦪUᦪ=2.5ᓃঝᔠᐵS2,S1ঞ2.5“U-2.5V)Ro(1)᪷`?@ᘤpᵯ9⊤Ḅg¾¶ᵨ£¤|ᱥ
(2)ᵯ⊤ஹᵯ⊤ᙳᨵᦪᵯᨵᨵ᳛(3)ᐝ"#$ᵯ%&'ᵯᓽ2.5V(4)᪷*&'᳛%P^=U”ⅸ,-ᓽ(5)Ḅᵯ/0Ḽ23Ḅᓣ567ᜧᓽ0Ḽ#$ḄᵯḄ7ᜧ67ᜧ(6)#$ᵯᨬ":;