2023年河南省开封市中考模拟物理试卷（附答案）

《2023年河南省开封市中考模拟物理试卷（附答案）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

2023
ᓭḕὃᱥᳮ⚪᪥:ὃஹ⚪1.᡻“ᓅ"□ᐝ''⚗'()ᓫ+,-./()012᛻4567Ḅ9:;9<=ᫀ?ᜐABᜐCDᦪFḄGH஺ᐸ45KᵫM5N01ḄO⊤Q45RSTḄᓫ+K஺2.ᦟWXYZ[Q<2021]^ᐰ`☘b]᪥cdᳫᱯ⁐᪥hi᪥ᓫ'ḄKjk᪥cdᳫlmnopqr☘b]Nsdᳫஹt᰿dᳫ஺᝞wᡠQKdᳫyzḄ{|}~Ḅdᳫ⌱ᑮᡈḄ}ᵨ~ḄdᳫB☠ᩭᢝᩭdᳫ᠒᠒ᑮᵫ¡Ḅᵨᦔ£K஺3.3ᨴ12ᓤ§¨©ª«“¬®¯°±²”Ḅ[´µᚪ·஺᝞wᡠQᙠ¹ᨵtnḄ»ᴻ½¾¿ÀÁᙽ®®⍗tÄÅᓣÇᱏᱏ“ÉÊ”Kᵫ®ᓣË◤⌕ᔾt/¿tÐÑÒḄnÓÒM1<⌱ᱥ᝱ÖᓄØÙÚ஺4.᝞wᵬᡠQᵯÞᵯßàᢝÖDáᵯ¡â=10C,æᔠªᐵS,êÖ¡ᘤêᱏPíaïðᑮñïòᵯ⊤QᦪÖᓄᐵó᝞wôḄõö/5ᡠQ•ᑣᵯÞᵯßU=VOüᵯß⊤ḄQᦪK2VÖ¡ᘤḄ¡áK஺஺♦U/V6ýON0.40.6//A

15.þÿ
ᢥ᯿ᡠḄᩭḄᵫᨵḄឋḄᕒ!
⌱#$%&'(
ᵫ)*+ᵨ-*.$ஹ%+Ḅ012⌱34ᜧᡈ4789:;ᓤ=>?@AḄ஺6.12ᨴ9DḄ“ᜩGHᚪ”KLMNOPQRᱏTᐭVᳫ;ḄX஺YZ[QḄ\]LMN^ᑮ▣▣✏[(
bcd᝛fghiᳫ〈ᐭV;ᳫᓾ☟mᙠV;o
᝛g)pqᳫ〈ᐭV;rs'qᳫ2⌱39ᡈt98☟mᙠV;uvwrḄxy஺zஹᓫ⌱⚪7.u᪷y~ᑡḄᑨᑮᐝḄᢚḄ
28A.᪛D᎔ᐭᛢB.@DᜩC.⍸ᨴ¡ᡂ£¤D.ᜧ¥¦§¨©ªDᙊ8.ᵨ®¯°9ᢣ²┝
´µ0ṹ·ᐵSiᡈᢣ²·ᐵS2ᩭ¹┝Ḅoᐸ;»)¼½¹┝ᜫ¿À┝*·ᐵS3Á·.ᨚÃᢣ²┝¹┝Ä9S3gᙠ)Å+ÆÀÇÈÉᔠ.ឮ̹┝Ä9஺oᵨᵯÈÎÏÐᢣ²┝¹┝ᡂÄᑣÒᔠ⌕ÔḄÏÐᵯÕ

29.ᐵÖÎ~ᑡv×ØÙḄ
28A.Î[Ú⚔ÜᨵÝᘂßÎ[Ú⚔ÜᨵàáâB.Îᙠᔾ[äå;gæ[ᔾᐭ[ÚC.ÖÎ
ᑭᵨᑁ9OÄḄéêëgᑁ9ìᓄ'Îî9D.)ïðñ~ÎḄòó:ᜧßÎᐸÄ᳛õ?ᜧ10.gòöḄ÷øùTᙠV;ú)û1ᜐuýþÿ
☢஺
☢ḄᜧᑡḄA.ᔣB.Ḅ!"#$ᔣᚖ&'☢(᜜Ḅ*ᔣC.ᙠ,-.ᐭ01D.23ᔣ45ᑁ.,,789:7;11.<=>?@ḄAᴻCDEFGHIᰦAᘤLMN8OPᵯRFᐰ┴஺ᓻញWXYZ[◤ᢥ^ᐵ`ᵯIaAᘤbc-ḄdᙌfghiOPjklmOPnoᜮkᡭ@rAᴻstu7vkwḄxḄ஺yᑨ{IᰦAᘤḄ|}ᳮ

312.ᵨᑴHOP,᝞ᐜᙠG〉,mᨵ▀Ḅᐭᵨᡭᡭᡭ^▀,uḄᔣᔣCᔣ-஺ᑡᑖ᪆£¤ḄA.,¥ᑮᨬ¨W©Oª«B.,ḄZ©ᵫᑁ,Ḅᑁ©$ᓄ°ᩭC.,ᙠCᓣ³´-Z©:µᜧD.,Cᓣ³´-ᨵ©$ᓄ¶l·©¸ஹº⌱⚪13.ᑡᐵ8<ᩞᧇ¿ÀÁÂ⌴ḄÄÅ-£¤ḄA.ÆÇᩞᧇÈÉÊᵯË┡Ḅ.ÍᵯÎB.ÏÐᕒ`³ᵯbÒÂ⌴ÀÁᙢ☢RᑴÔÕÖᢝὶÔC.ᐝÇÚÛÂ⌴ÀÁḄÜÝÞᐝᓽ⚣᳛ᓫOḄᵯbÒD.ãÇÝᩞᧇÈᵨᩭᑴäᵯd14.᝞ᡠæOPçèᳫêëᐭ,-ìíîèᳫាðñòóôõd*ᔣèᳫᑗᡂᜧøùḄúᙽᨵúüᑗÅ᝞ᵬþÿᡠ
ᑣA.ᵬᑗᙽᜧᙽB.ᵬᑗᜧᙽᙽC.ᑗᙽD.ᑗᙽஹ⚪15.LஹL2ὶᙠᵯ"#Si$%&ᑖ()ᵯ"Ḅ+,ᐵ./0ᑴ23456789ᵨ;<=>?=@ABCᵯ"஺

416.᝞ᡠ
ᳫA☟HᙠᜋJ8ᙠ#

5⌱‘'$"ᡈ"ᔲ”yVÍᩨᩚᙠΣÏУ⊝ÑÒᩨᩚÓÔÕᔣ⌱“”ᡈ“Ö”y2᝞ᡠ
ᩨᩚᜐÆΣ£⊝Ç᝱஺¿ÒᩨᩚØḄ½ṹÙᣵu5ÛÜᩨᩚḄ⌱“”ᡈ“Ö”Óy3§§ᵨ´µ¶M·>?½ṹ᝞Þᡠ
ßᦋá´µ¶M·Ḅᵨâ4MḄᜧÍᩨᩚᙠΣÏУ⊝´µ¶M·ḄãMF~ᐸMæ//Ḅ_᝞èᡠ
஺_#5â~ᙶ᪗ëìᡂḄí☢ï⌱“°±”ᡈ“±”ᐸðñ$4§§RóPQÒÖØḄ½ṹᵨ´µ¶M·>?᝞ôᡠ
õ᝛÷øÉ/¶M·Ḅ
ᦪúûPü_____o⌱ÿஹᜧᡈ19.ᙠ“ᵯ''Ḅ᧽ᜓᑡᘤᩞ#$⁚&'ᵯ(᪗ᨵ“2.5V”Ḅ/0ᘤR“10C1A”6ᐵஹ89:'஺ᵬ=1᧽>?@ᵬᡠBḄᵯCDEᙠ?┯Ḅ89Gᡭ“x”JKLMNḄ>9;=2Pᔠ6ᐵS,T0/ᱏP,WXYZ[ᵯ\⊤ᢣ┐`aᵯb⊤cdBᦪᑣᦑhijklm;=3᣸◀ᦑhqT0/ᱏP,5rᦪstuᙠ⊤ᑁ஺ᐸxyrzᵯb⊤ஹᵯ\⊤Bᦪ᝞@|ᡠBᑣḄᵯb}V,ᵯ\}A~rᦪ12345ᵯbUN0.51.01.52.5ᵯ\//A0.160.200.220.28

6(4)ᵫ⊤ᦪsk#MWᐝzḄᵯ᳛mW,ᘤὑḄᵯ᳛ᨬ?;A.0.1WB.0.3WC.0.5WD.0.7WE.0.9W(5)᧽@ᡠBḄᵯCᵨᵯb⊤Ḅ᳛஺/0ᘤRᨬᜧ¡}15C,ᵯ¢ᵯbឤᐸ¤¥᝞#□Pᔠ6ᐵஹS2,6S3,§/0ᘤḄ/ᱏTᑮ©ªᵯb⊤Bᦪ}4.5V~«Pᔠ6ᐵ5ஹS3,6S2,T0/0ᘤḄ/ᱏ¬ᵯb⊤Bᦪ}V,zMWᐝ~I□Pᔠ6ᐵS|ஹS2,6S3,°ᢝ/0ᘤ/ᱏḄ²³´zᵯb⊤Bᦪ}3V~Ḅ᳛P=W஺µஹ¶⚪20.¸¹ºᜧ᫑¼½}X¾¿ᜧ᜻ÁÂÃᐸÄÅ5000mḄÇÈÉ⍝ˤÌ᫑ÍÎÏÐC☢Ò>ᓫÔÌ᫑Ä1000m,ÕÖ×Ø}40m,Ùᓄ@᝞@ᡠB஺Û5X1()4NḄÜÝᙠÇÈÉ⍝90km/hḄàØᒴàâãᡠäå}ᐸÛåḄ0.05æ஺ç#(1)ÜÝèᐰˤÇÈÉ⍝◤⌕ìíî(2)ÜÝᙠÇÈÉ⍝âãzᱫÌåðḄ᳛mñòî(3):ÜÝóÌ᫑ᨬôª6Y᳛õᜧᑮ80kWᒴàâãὑz50sᑮ÷ÎÏÐC☢ÜÝᙠÌ᫑Gâ㤥W0øḄøùᦔ᳛mñòî¿ஹûᔠ⚪21.᝞@ᵬᡠBmÃüឤýþ᝘ᘤḄᵯᐹᨵஹஹ஺ᵯᙌᵯ஺ᑴᵯᵯU/=3V,'(ᵯ&=50஺,ᵯR(./0ᓄḄ2᝞4ᡠ6789ᵯᵯ஺2=220V,Q=836C,R2=

744C஺AឤC᝘ᘤEFG2kg,JKᑮ801N⊖PQR஺SAc=4.2xlO3J/(kg.*C)]^zk:a1b⊖cQRN,ᵯdeḄᵯfghia)a2b89ᵯᙠk᝱mḄᵯ᳛oa)a3bpC᝘ᘤq/G25ḄJᐗs89500su⊖QRvwxyJᔾᦈḄFab|ឤC᝘ᘤḄᦔ᳛oa)a4b~ᜧḄ(⊖QRḄJaᓣ//0b஺

8ὃᫀ:I.ᑣᑖூ᪆௃ூ௃[1]ᑗᙠḄᱥᙠᱥᳮḄ/ᩭ¢£fᑣ¤¥Ḅ஺[2]£¦§¨fᵫ£Ḅª/«'Ḅᐸᓫ®Gᑖᵨ°±dB⊤6஺2.³´ឋᦋ0ᱥḄ·k᝱ூ᪆௃ூ௃¸]¹º»Ḅ¼ᳫᙠ¾¿ÀxyÁA¼ᳫῃÄᡠżᳫP³ᑮ¹ÆḄ9ᵨ஺ফ¿º»Ḅ¼ᳫᵫÈᐹᨵ´ឋÉ⌕ᢝÌᩭḄ·k᝱ᡠÅPᙠ¾ÍÎÏ¿À஺[3]~ÐmᩭÑÐÒ¼ᳫP᠒᠒ÔÕÖᑮ×mfᵫÈᳫ³ᑮÆḄ9ᵨØᳫÙ³ᑮÆḄ9ᵨÚᦋ0·k᝱¢ÛÆḄ9ᵨᦔÜᦋ0ᱥḄ·k᝱஺3.ᔾÝᓄூ᪆௃ூ௃[1]Þß⍗uᵫá᝱ÖÐ0Gâ᝱ᓽ¥ᓣäåæ◤⌕ᔾ஺[2]“èé”ᵫÈÞßᓣäᔾᦈᜧFḄᐸᕜìḄ/¾âḄJíâ⍗î¥ïÝᓄåæ஺4.65ூ᪆௃ூ௃[1]᝞ᵬᡠ6ñᔠóᐵuᜐÂᜐöὶᵯ⊤øᕒdeᵯ᝞4ᡠ6pᵯᵯúᨬᜧL=0.6ANᵯ⊤6ᦪG0,ᓽýÐᐭᵯG0,ᵯGR/Ḅÿᓫᵯᡠᵯᵯ஺=/□=0.6Axl0Q=6Vফᵯ⊤Ḅᦪ2Vᜐᵯq=U-U2=6V—2V=4Vᫀ1⚓ᐳ11⚓

9ᵯᵯ/1,!MA"#$%ᘤḄ%'&〈=5஺5.()*+,ᜧூ
᪆௃ூ
௃.]01ᩭ3ᱥ5Ḅ6789:ᨵᐵ9:ᓣ>67?ᜧ9:@A67BCᓽEFᨵ()*+Ḅឋ5஺ফᵫᱥ5Ḅ()*+ឋ5IJEFK:LḼ9:ᓣ>N$C⌱PᙠRSᡈὅVSWXYZ[F\]RSᡈὅVSEFḄK:^_,ᜧN[F`ᢥ᯿YZᡠ[cEFḄ67ᩭdeḄᵫK:fgIhRஹV[Fjklᓤ[FnJop5qḄEF஺6.᡽ᦣjtuvூ
᪆௃ூ
௃wxᑮ▣▣✏||ᕡᑖᑣ#Ḅ᡽ᦣ஺[2][3]]ᡠᨵᱥ6ᜐᜫ᝱`Ḅᱥ6ᩭ]Nᣵᩭ஺ᙠᜫ᛻6ᑁᨵ¡ᵨ£¤ᙠᦑ¦ᳫj☟©ᙠªᡈᐸ¬®¯°஺7.Dூ
᪆௃ூ
௃A.᎔²³☢µᡂ·ᐝḄ¹ºᦑA»ᔠ⚪®¾B.w¿ÀᢱÂ□ᐝḄÃÄÅÆḄᐝḄÃÄÅÆᦑB»ᔠ⚪®¾C.²ᐝÄÇÈÉÊᱥ6ËÀᢱÌᡂḄᐝÄ᯿ºᑮḄ¯°ᐝḄÃÄÅÆᦑC»ᔠ⚪®¾D.“ÎÏ”ᵫ□ᐝÇÈᙳᒴḄᜧ|ÓÔÕÂᢚºNÌᡂḄ□Ḅ×·ᢚºᦑD»ᔠ⚪®஺ᫀ2⚓ᐳ11⚓

10ᦑ⌱D஺8.Dூ
᪆௃ூ
௃ᵫ⚪®IhᢣÙÚᐵS1ᡈKṹÚᐵS2ᙳIv┝┝ÝÚᐵS3ÞÚᨚàáâv┝ãjᑣᢣÙÚᐵ$åKṹÚᐵS2Iæçè¡ஹé²êᓽëὶí┝ÝÚᐵS3¯îᯠð8ᵯ#âஹᵯñᡂᵯ஺ᦑ⌱D஺9.Cூ
᪆௃ூ
௃A.EFâòóg|ô⚔ᨵö÷øùFâᔾ|ûüᔾᐭ|óᧇÿ
ᘂ
ᐭᑁ⚔ᨵ
ᘂᦑA┯B.ᙠᔾḄᔠᔾᐭᦑB┯C.ᑭᵨᑁ#$%Ḅ&'(ᧇ(*+,-.-/Ḅ0123$%4ᑁ#5ᓄ78#ᦑC9:D.;<=>?@Ḅ/ABᜧDᐸ%᳛GHᜧᦑD┯஺ᦑ⌱C஺10.Bூ
᪆௃ூ
௃A.᪷LM/NḄOPᙠMQR;ST/NᜧUVRᨵᐵᙠXYZᔣ?\1]^VRMQR_`/N]^UabM☢-Rd`ᜧef4gᦑA_hᔠ⚪jB.Mᑁᔣkleᔣ/NmnXYZḄopq5ᔣᚖst☢u᜜ḄeᔣMVRwQRᙳ_`/NᜧU_`UabM☢-Rd_`ᡠzef_4gᦑB_hᔠ⚪jC.᪷LM/NḄOP᜛=0g஻ᙠMVR;ST/NᜧUMQRᨵᐵᙠ^ᐭ]^MḄQR/N]^UabM☢-Rd`ᜧef4gᦑC_hᔠ⚪jᫀ3⚓ᐳ11⚓

11D.᪷LM/NḄOP஺=0g஻ᙠMQR;ST/NᜧUVRᨵᐵᔣ*ᑁ^-D'ᓽ]^VR/N]^UabM☢-Rd`ᜧef4gᦑD_hᔠ⚪j஺ᦑ⌱B஺11.Aூ
᪆௃ூ
௃1ᰦᘤḄᳮᵯᨵḄᵨᵯ1Ḅᳮm஺A.᝞¢ᵯ1Ḅᳮ¢£¤ᔠ¥ᐵᨵᵯ¦T§ᙠ¨©ª1ᦑAhᔠ⚪jB.᝞¢«ᵯᳮ¢£¤ᔠᵯ¬Ḅ;ᑖᙠ$ᑗᒘ°±Ḅª1T§+,°²ᵯ¦YDᵯ°²³´ᦑB_hᔠ⚪j஺C.᝞¢µ¶ᵯ·ឋN¹±ᙌ»ᦪḄᐵ½¾¿&'YDᵯ¦Ḅᦔ²ᦑC_hᔠ⚪jD.᝞¢£ḄS᩽☠ÃN᩽TmÄᔾŵ¶᩽ÆmÄᵨÇÈḄ¾¿&'ᦑD_hᔠ⚪j஺ᦑ⌱Ao12.Dூ
᪆௃ூ
௃A.᝞¢ÉÊËᔣÌ«ÍÎÏḄª1ᑮᨬ-ÒTᔣÌḄÓR70,ÔᨵÕeᔣÌḄÓR1#_7ÖᦑA┯B.ᵨᡭØÙÚÛᡭÜÚᑁᑁ#]^ᑮÝ;SRTÞßḄXYbᔣ?
ÎÉÊᔣÌàᔣ/AÉÊ$%ᡠzÉÊḄ8#ᵫÚᑁḄᑁ#5ᓄ©ᩭᦑB┯C.ÉÊᙠÌᓣ+,᥅åᑖ8#5ᓄ7ᑁ#8#æUᦑC┯D.ÉÊÌᓣçè_`-R]^éê#]^ÓRæU1#æUᡠzᨵ1#5ᓄ7éê#ᦑD9:஺ᦑ⌱D஺ᫀ4⚓ᐳ11⚓

1213.BCூ
᪆௃ூ
௃A.᪷LᯖὡSÈ+,Ḅèíîᵯïᨵᐵðᩞᧇᵯï70,ᵯTòó_«_4zôõᵯö┡ÛḄ^ᵯïᦑA┯B.ᵯø4zᙠùúûüúûÓRýþÿᕒ
ᵯ⌴ᙢ☢ᑴᢝὶᦑBC.ᐝᐹᨵஹ!ᔣឋஹᓫ⁐ឋஹ&'ឋᐝ()*+⌴Ḅ-./ᐝᓽ⚣᳛ᓫ3ḄᵯᦑCD.4(.ᩞᧇ(ᵯ789:(.;<.=>(ᵯ78?@AஹBCDE(.?〉ᔠᵨᩭᑴJKᵯLᦑD┯N஺ᦑ⌱BC஺14.ACூR᪆௃ூUR௃VWXᳫZ[ᐭ]^_`aXᳫាcde⊤gᳫḄhᙳjC:]Ḅj஺AB.ᵬᑗmnᡂḄpᙽ^rᙽstWXᙽjᜧ:ᳫḄhᙳjᓽᜧ:]ḄjᜧᙽḄVWvᑖ?xtWvᑖxrᡠzhᙳjr:ᳫḄhᙳjᓽr:]Ḅj᪷|ᱥ.~eᩩ(rᙽ~ᜧᙽeᦑAᔠ⚪B?ᔠ⚪CD.ᑗm(pᙽxᡂtWXᙽjᜧ:]Ḅj᪷|ᱥ.~eᩩ~ᦑCᔠ⚪D?ᔠ⚪஺ᦑ⌱AC஺ூ
᪆௃ூ
௃ᫀ5⚓ᐳ11⚓

13᪷|ᵯḄ⌕ᐵ⌕ὶᙠᵨᵯᘤL=>Ḅ¡Lᵫ:ᐵs£ᐵḄ¤¥ᐵL&¦Ḅ¦ᙢL᝞¨ᡠ©ூ
᪆௃ூ
௃rᳫ☟«ᙠᜋᜐ¯°±ᔣḄ²8G,°±ᔣḄµᢝ8¶&Jᵨᜐ:h⊝¹᝱஺rᳫḄ²8Gᙢ☢»¼Ḅµᢝ8Fµ/3»h⊝8F½G,zᳫḄ²Ws¾¿°±ᔣJ²8GḄ©¨°±ᔣJµᢝ8¶µḄ©¨᝞¨ᡠ©IG17.ÄÅᡂᙠᐝÆḄ^Ç᯿&ÉBூ
᪆௃ூ
௃(1)[1]sÏÄÅᡂᙠᐝÆḄ^ÇÐ:ÑÒtÓÔ◤Ö⁚ØᯚஹÚÛஹᐝƦὅḄ^WᙠÝ3஺(2)[2]᝞¨ᵬᡠ©ᱥßs50.0cm,ᯖßs15cm,ᱥßᜧ:2åḄᯖß᪷|æÚÛᡂÅḄçᳮᡂ᎔êஹërḄtÅ᯿&ÉìJçᳮ&Ýᦑíî^ᑭᵨðñòóᑴᡂḄᫀ6⚓ᐳ11⚓

14ᐝõöᘤ/᯿&É஺(3)[3]ᵫ:æÚÛᐝWḄᐝLø!ᔣ?xùḼ∑ØḄüý∑Øxþᑣ
ᔣ஺[4]᪷ᡂ᝞ᱥᜧᯖᡂ᎔ḄACᨵ!"᝞ᱥ#ᯖᑣᡂ%ஹ'ᜧḄ(Dᨵ!"B+%ஹ,#Ḅ-.ᔠᡂ01234ᦑB-!"஺18.:;;<=>?@A#ூ@᪆௃ூ?@௃(1)᝞GᵬᡠJᩨᩚᜐ☟OP᝱ᓽST⊝VWᵨYZḄᩨᩚ:T⊝P᝱஺[-ᙠ]T^_T⊝ᩨᩚ;`a⊤c;`d3e+fᩨᩚᙠ]T^_T⊝ghᩨᩚ;ijkᔣ;l⁚஺(2)[3]pqrsṹḄuV+G,ᩨᩚq#xḄyz+/,᝞GᡠJ|hᩨᩚ}~Ḅsṹᣵ3r;}ḄVVᑖ+Fl.=2Gx2l=4Gltr//=Gx3/=3G/ᡠ/y;ு/y᪷ᩨᩚT⊝ᩩ;`஺(3)[4][5]᝞GᡠJ᪷ᩨᩚT⊝ᩩ4Gx3Z=Fx/,+qr}ᙶ᪗ᡂḄ☢=4Gx3/,ᡠ:3r<=஺(4)[6]ᢥ᝞GᡠJ£¤¥¦§¨V©ᑣ¦§¨V©ªᩨᩚḄ«V=¦§¨V©Ḅ¬ᫀ®7⚓ᐳ11⚓

15ூ
᪆௃ூ
௃(1)[1]²³fᵨ´¤£¨µ#¶·ᵯ¹ᵯº⊤g»¼#¶·½ὶᵯ¿⊤g#¶·ÀὶÁGᵬ0ᵯ¿⊤#¶·½ὶᵯº⊤%ÂÃÄ#¶·~ÂÃÄḄÅÃÆÇÈᵯº⊤#¶·Àὶ-"Éᡂ#¶·ᵯ¹Ḅ¨µÊYghᵯº⊤%ÂÃÄ#¶·~ÂÃÄḄÅÃᣵᯠÌÍ#¶·ḄiÂÃÄᵯ¿⊤ÎÂÃÄᡈÐѹᘤiÂÃÄ<ÅÓᵯº⊤½ὶᵯ¿⊤#¶·Àὶ᝞GᡠJÔ(2)[2]ᵯ¿⊤ÕJᦪḄ×ÊØ⌕:ÚᨵᵯººÛᵯ¿⊤!"ḄÜÝᨵ}4Ôᵯ¿⊤¨µÞᑖßàáâᡈᵯ¿⊤¨µÞᑖ᜜ßàäâåᔠᵯº⊤ᢣ┐èAéêÁᑨäìg»:ᵯ¿⊤¨µÞᑖ᜜ßàÈäâ!":ᵯº⊤äâஹíᐵäâஹÐѹᘤäâᡈÆÃÂï-ð=஺(3)[3]åᔠGᵬஹñ¼òóᦪḄ⊤x!ᑨäìᵯ¿⊤Âᐭᵯâ0Ḅµõ+0
3V,ᑖz+0.1V,Gñ0ᵯ¿⊤ᢣ┐ᢣᙠ2V~®3rözÃᜐÊYᵯ¿⊤÷ᦪ+2.1V஺[4]åᔠGᵬஹñ¼òóᦪḄ⊤x!ᑨäìᵯº⊤Âᐭᵯâ0Ḅµõ+0
0.6A,ᑖz+0.02A,Gñ0ᵯº⊤ᢣ┐ᢣᙠ0.2A~®ørözÃᜐÊYᵯº⊤÷ᦪ+0.26A஺(4)[5]ᵫ⚪ûü#¶·Ḅýᵯ¿஺᪹2.5V,#¶·%ÿᐝᓽᵯᑮᵯ⊤Ḅᵯ/ᢚ0.28A,ᑣ!ᐝḄᵯ"᳛$6=஺/=25Vx0.28A=0.7Wযᵯ(ᵯ)$⁚+,ᵯ-.⁚,ᵯ-Ḅᵯ$1.5V,ᑣ⁚,ᵯ-/ὶ1ᩭᵯ$U=3V,ᑣ!ᐝᵯ(Ḅ3"᳛$P=U/=3Vx0.28A=0.84W&ᵫ/ὶᵯ(3ᵯ"᳛56ᔜᵨᵯᘤᵯ"᳛:;<=>ᘤ?ὑḄᵯ"᳛$AᫀC8⚓ᐳ11⚓

16GIᘤJ2L6=0.84W-0.7W=0.14WᦻHlvn•«&I-ᦑ⌱Ao(5)[7]᝞`aᡠcdᔠfᐵSiஹS2,lfS3,nop=>ᘤḄoᱏrᑮstᵯ(uᨵop=>ᘤwᨬᜧ>z{ᐭᵯ(}~{ᵯ⊤᦮op=>ᘤḄᵯᓽᵯ)ᵯg.5V஺dᔠfᐵSiஹS3,lfS2,rpop=>ᘤḄoᱏt;op=>ᘤoᱏᑖ/ὶ{ᐭᵯ(ᵯ⊤Ḅop=>ᘤᵯḄᵯUk2.5V,ᵫ/ὶᵯ(3ᵯ56ᔜᵨᵯᘤᵯ:;<$!ᐝ=>ᘤᵯᓽᵯ⊤cᦪ$஺>="L0=4.5V-2.5V=2V[8]᝞`aᡠcdᔠfᐵ$ஹS,lfS3,ᢝop=>ᘤoᱏḄ=ᵯ(uᨵ2op=>ᘤwᨬᜧ>z{ᐭᵯ(ᵯ⊤Ḅop=>ᘤoᱏᵯ>ᵯcᦪ$U3V,᪷/ὶᑖoᱏsᵯ>ᵯ$U=U-U.=4.5V-3V=1.5Vt;)/ὶᵯ(ᵯ>:56ᵯ:ᑣop=>ᘤoᱏsᵯ>:$R”==3V:1.5V=2:1ᵫop=>ᘤRᨬᜧ>z$15஺ᘤḄ>z¨ᙠ=10Q,ᐸᵯ஺᪗2V,ᵫ®¯°<ᵯ(ḄᵯᓽḄᵯ$/==—=0.2Aᓽ10QᑣḄ"᳛$²=[//=2.5Vx0.2A=0.5WᦑḄ"᳛$0.5W஺20.(1)200s(2)6.25xlO4W(3)50%AᫀC9⚓ᐳ11⚓

17ூ£᪆௃ூ¼£௃£½¾1¿᪷⚪Á½ÂÃᙠÄÅÆ⍝ḄÈÉ$v=90km/h=25m/sᑣÂÃÍᐰÏÄÅÆ⍝ḄÐ$¾2¿§$ÂÃᙠÄÅÆ⍝ᒴÈÒÓᑣÂÃᑮḄ>ÔGÂÃḄᱫÖÔL×Ø⊝Ô,ᜧÚ5ᓽÂÃᑮḄᱫÖÔ$F.«=^0.05G=0.05X5X104N=2.5X103NᑣÂÃᙠÄÅÆ⍝ÒÓᱫÖÔÛ"Ḅ"᳛$P=Fmᱏ2.5*103Nx25m/s=6.25x104W¾3¿ÂÃᙠÖ᫑ÒÓḄ"᳛$P,=80kW=8xl04WᑣᱫÖÔᡠÛḄ"$ᱏ8xl¾¿4wx50s=4xl06jÛḄᨵᵨ"$W⃬Gh=5x104Nx40m=2xl06JᑣpãḄãäᦔ᳛$஻=ᔳ!•X100%=ëWìX100%=50%í4xlO6JA½¾1¿ÂÃÍᐰÏÄÅÆ⍝◤⌕200s¾2¿ÂÃᙠÄÅÆ⍝ÒÓᱫÖÔÛ"Ḅ"᳛6.25X10&W¾3¿ðÂÃÖ᫑ᨬñfò"᳛óᜧᑮ80kWᒴÈÒÓὑ50sᑮôõö(☢ÂÃᙠÖ᫑ÒÓøpãḄãäᦔ᳛50%஺21.2V55W5.5xl0sJ84%ùñூ£᪆௃ூ¼£௃£½¾1¿[1]ᵫ`ᵬûᑴᵯ(RGý/ὶᵫ`þÿ
80࠷ᵯḄ100Q,ὶᵯᵯᔜᑖᵯᡠᑴᵯḄᵯᫀ!10⚓ᐳ11⚓

18%=R+K=100Q+50C=150n⊖'()*+,ᵯ-'.ᙌḄᵯ01=3=஺஺2Aᵯ56Ḅᵯ74=//?=0.02AX100Q=2V(2)[2]8⊖'9ᔾ;<=>?☟=>bA=BCᵯDḄEᓫᵯDBC஻2ᵯḄᵯᨬHᵫᡝ=KLMDBCᵯḄᵯN᳛ᨬᜧᜐRS᝱UឤWR᝘ᘤRS᝱;ḄᵯN᳛U2(220V)2=1100W44c(3)[3]ZᔾᦈḄ\°=ᑖ^(rTo)=4.2x10'J/(kg•࠷)X2kgx(80࠷-25࠷)=4.62xlO5J[4]500sᑁaὑḄᵯcW=PZ=1100WX500S=5.5X105JឤW᝘ᘤḄRᦔ᳛7=2x100%=462x10JxlOO%=84%W5.5xlO5J(4)[5]efᜧgḄᙠᑴᵯᵯ7ijᵯᵯkᜧᵯ0kHl⊖'m*ᵯ0ijᡠᵯRḄ◤⌕pHᵫᵯRḄq
kᓄḄstLMuvw⊖'m*ḄZxy஺U(1)⊖'(m*ᵯ56Ḅᵯ72Vz(2)BCᵯᙠ{S᝱;ḄᵯN᳛55Wz(3)8W᝘ᘤR|
25࠷ḄZRᐗ~BC500s⊖'m*D,ZᔾᦈḄ\5.5x10$J,ឤW᝘ᘤḄRᦔ᳛84%z(4)efᜧḄuvw⊖'m*ḄZxy஺ᫀ!11⚓ᐳ11⚓