2022届安徽省天长市十校中考联考最后物理试题含解析及点睛

《2022届安徽省天长市十校中考联考最后物理试题含解析及点睛》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。

2021-2022
ὃᱥᳮᔁὃ1.⚪ὃஹஹஹὃஹᑏᙠᔁᑁ!"#ᙠᔁ$%&'᪗)஺2.+,-ᑖ⌱0⚪12⚪⌱3ᫀ5!◤ᫀᑏᙠᔁᢣ8Ḅ:ᑁ!+;-ᑖ<⌱0⚪ᫀᑏᙠᔁ⚪=ᢣ8Ḅ>$஺3.ὃ?@AB⚪ᓱḄ᦮E஺ὃFG5!HᔁI⚪ᓱ,JKL஺,ஹᓫ⚗⌱0⚪OHᜧ⚪72⚪!1⚪3ᑖ!ᐳ21ᑖR1.SᑡUVḄᦪXᨬZ[\▭Ḅ^A.,`᪗aA4ᡭᓺdḄefᜧgh1mmB.,ᐗjkḄlmgh50gC.nᵨpqᑴstḄu᳛gh10WD.,wxyᦟᑁp{Ḅlmᜧgh300kg2.q⁚ᵯ~Ḅm!^hᦋḄA.fB.⁐C.qD.⚣᳛3.SᑡᐝḄᢚḄ^A.■,ᑮἠ$◚Ḅ᪗)ᵨᜧἠ4.Sᑡ^2`ᙠ#3Ḅ¡¢F£!¤¥h¦§Ḅ,⚗^A.ᙠᒴ©ª«¬Ḅ!2®¯ª°±5²³ᙠ´ᙢ!^¶h2®ᐹᨵ¹ឋB.2»ᒴ©¼ᩚt!¾¿ᩚḄÀÁI2»ÂᑮḄÃÁ^,¿Ä⊝ÁC.«tÆ⌕ÈÉᐰË!^h■͹ឋËᩭḄᓻÐ

1D.ÑÒ;ᙠÓ⍝Õ«t!᝞×ᡠÂḄÁtÙᜫ!ÛÜᒴ©ªÝÞ5.ßàᨵáw«â5ãäå«ḄÉᐰឋ.çßèÞ!ᓽᵯêSiëᔠ!áw«âLiíᐝ!îᵯêS2ïëᔠ![âᐝL2ãtíᐝ.ᙠ᝞ðᡠñḄᵯò!óᔠ$ôõöḄ^6.÷Søùúᱥᳮûü¿ýḄ^A.ᡭþ┡
ᑮ“”…ᓄB.ᔿᵯᡧᑮ…ᡧC.ᵨ!Ḅ#$%ᑭᵨ'᜜)*₯ᐝᱥ./ᐝD.⌼1234ᙢᳫ7ᒴ9ᙊᕜ<…=ᑮ>⊝@Aᵨ7.ᙠCᑡEFGHᘤJKGHLᑭᵨMNOPQM9ᐵSTUᓣ@ḄWA.GB.G‷C.ZᳫD.[\]ஹ_`⚪bcᜧ⚪7e⚪Kᐳ21ᑖh8.᝞jᡠlKW%mnᏝᵨpqᑵst᜜ᜋvḄᓣwxlyjKz{|}ᙠs⚔஺.2.5kg,mA.7.5kg,ᧇᡠᨵmᐹ.20kg,mnᏝḄ.60kg,᥅஺mAᙠᙢ☢10mᜐLKmnᏝḄ@NmAᙢ☢10mᜐᓣᑮ20mᜐKmnᏝᨬ◤⌕7JḄ஺b¡g=10N/kg9.ᡃ£✌⁂¦§¨⌼Ḅ£©ª«--OOIAª`«…¯°±p36²³-15…±KQ´µḄ“¶·…”¸¹ºᐹᡊᧅ@.ᙠ¾z¿JÀ…±GÁOOIAª`«…LKª`«…ᡠ=Ã@Äb⌱_“Æᜧ”ஹ“Æe”ᡈ“Æ”h;ÉL¸pª`«…KÂGÁḄ…±Wb⌱_“<”ᡈ“☟Ë”hḄ.

210.᝞ᡠᑁḄᔣᑁḄᦔ᳛,!"ᦻ$%ᩭ'()*+᝱-᛻⌼ᡂ'123456127.11.89:;4<=>Ḅ?@ABᵨ'᝞ᡠḄ;DEᡠFᵨGHIḄᑖHKL—cm,NOPḄQᑖḄRHLcm,<=>Ḅ?@Lmm.[}--20ᙌ5H1[(KHIHUUUNUII஺i23cm4?12.L'UᐰWX!ᕒZ[FᵨUᐰ%\]⌕■`4ab᜜defgញᑷjᵫl⌼ᡂḄᓻn.Uᐰ%opᡡrsᜧL'u8Uᐰ%v!Ḅ.13.᝞ᡠᙠxyzᑁ{|ᱥ~☢ᑖ4⚔ᱥ|10N,i=20N,F=15N,2H!=lm,☢RL/M=2m,L=3m,ᑣo᳛_2,ᦔ᳛5஻2ᙳ⌱“>”ஹCD“=,ᡈ“<”ᱥ§☢A3¨©ªᡠ«᥅ᜧ8LNo14.N®L“¯°>±²³”´µ-·¸¹“ᓭ¯5¼”Nᡂᡭ¾4¯.“ᓭ¯5¼”¹¿lÀ20mÁ«ᑮ¯ḄÃ9L5Pa,ÄÅÆ5Ç“ÈᜩÊ”Ë᠒Ç͹¹4ΫᑮḄÏ5“Ðᜧ”ஹ“Ð8”ᡈ“ÑД\⁂·¸Ó᣸ÕÖḄ×ØL600ᔴᑣÓᙠÕÖ«ᑮḄÏL5N.
g=10N/kg,¯ḄÚHL1.03xl03kg/mJÛஹ⚪ᐳ7ᑖ15.᝞ᡠᵨÞᱥ§Ãᙠß?ᜋ☢°☟`â4ᱥ§ᡠ«Ḅ|᥅Ḅb

316.᝞jᡠlKÌᙠjJÍÎ@FÏÐOḄ@ÑKÒᵨL⊤l;□17.᝞jᡠlK%Ô☠ᙠÖ×ᜋØḄÙᳫKÌÍÎÙᳫᡠ=ᑮ@Ḅlyj஺()EஹÚ⚪(cᜧ⚪ᐳ5e⚪Kᐳ20ᑖ)18.eÝᑭᵨ᝞jᡠlḄᵯÞßeàáḄâ}᳛.Æäᘤ᪗ᨵ“20Q2A”æ᪵KᵯèᵯOឤ9V,eàáḄâ}ᵯO2.5V,â}᳛ep1.5W,äêR15QஹR2=15Q,R3=25QḄëÔ}êᵯäR.ÌᵨìÍ)íîï)KðᡂjᵬJÚᱥᵯÞḄóô.ᵯÞóôõö÷Køᱏúᑮᨬû{KüᔠþᐵK/eàáÿᵯ⊤ᨵᦪᵯ⊤ᦪᦑᨵᜐᑣᦑ.◀ᦑᦈḄᦪᙠ⊤".#ᵯ⊤Ḅᦪ$2.5V%ᵯ⊤Ḅᦪ&'(ᡠ*+,Ḅ-./᳛W.⊤231234ᵯ/V1.01.52.02.5ᵯ/A0.260.290.32(4)ᑖ᪆⊤"Ḅᦪ6"⌱ᵨḄCḄ.:ᵯ;.*<=ᡂ?@Aᣵᵯ⊤CDᵨEFGHᐵJKLMNᨵOᣚᐸRᘤᩞUVE᝞'XᡠḄᵯYZ=ᡂE[*+,-./᳛Ḅ\]^_`a⊡ᐙ=᦮:

4জgᔠSஹs,,jHS2,klmᱏoᵯ⊤Ḅᦪ$Vঝ,rsᵯ⊤Ḅᦪ$Uঞ+,-./᳛Ḅ⊤uv$p«=wᵨx6]y\]Ḅᨬ⊤{.19.ᵨ᝞'ᡠ|}~“lᜧ*]Ḅᐵ”,ᐹḄᳫḄ`oᳫᑮu☢%Ḅ,,F¡¢£`ᳫlḄᜧ*.¤◀Eᵨᑮ¥ᣚ¦᜜¨ᵨᑮE.©ªs«⚪*<®☢ᱥᳮ6±Ḅ²³6⍝µᜧ¶·¸¹¶.ᙠºl»"¼ᵨµᜧ¶½¾Ḅᢣw'ᵬ{,Áᑮᢣ_ḄÃÄᯠÆᵨRÇᜐḄÈÉw'({ÁᑮÈÉ—ḄÃ.w⌱Ë“µᜧ”ஹ“Ìᜧ”ᡈ“Î*”{¼Ï¸¹¶ᡂÃḄᜧ*ÐKÑÒᨵᐵÓᐝ×?Ãᑮ¸ᱥᑮ¸¹ᐝ×?ù¶ḄÔÕ¶ḄÔÕ/cmḄᜧ*/cm4013.5Î*3015Î*2020Ìᜧ1530µᜧ10ᐝ×?NᨵÃ8ᐝ×?NᨵéØÙÚϸ¹¶ᡂÃḄᜧ*ᨵᐵ.©UVÛØÙ*<ᙠ'"ᡠḄᐝᐹÜ?jᦋÞ∑๶áḄÔÕÛklᐝ×ØÙᡠḄᦪ᝞⊤ᡠ.©âãäᵨ
1ᑖ᪆ᦪ6ᱥᑮ¸¹¶ḄÔÕåæᐝ×?ÃḄᜧ*·å%çèÃᑮ¸¹¶ḄÔÕ·å

5
2*<é᯿ëì᯿%᤬îïçèFð¨ᨵ²NᨵØᐭòó᪾ᑁö%᤬îïäo᯿÷²w⌱Ë“☠ù”ᡈ“ÇÕ”{%¨ä_᯿÷Ḅᨩûüw⌱Ë“ýü”ஹ“Îæ”ᡈ“ᦋÞ”{.21.*þ²ᙠ“\]*+,ᵯ;”Ḅ"ᡠᵨᘤᩞ᝞`F⁚
ᵯ᪗ᨵ2.5VḄ
,ᘤRi“10Q1A”ஹ“20C2A”ᐵஹ
.!᪷#$ᵬᵨ'()*+$,-Ḅᵯ./01᦮3⌕56ᘤᱏP89:;<=>?.@ᔠᐵBᱏPCDE3⌱Gᡈ"8”?I.JK/0ᵯ.L@ᔠᐵS,9ᱏP,MNOPQ<:ᵯR⊤ᢣ┐VWXYZ,ᵯ[⊤ᨵ\ᦪᑣᦑ`abcde.A.f.B.ᘤf.C.g.D.ᘤg.᣸◀ᦑ`L9ᱏP,jklm6nᦪ#᝞⊤pᡠ\.ᐸ-s2ktuvᵯR⊤⊤w᝞$xyvᵯ.-ḄᵯRzAs4ktuvᵯ{zO.ᵫ⊤p-Ḅᦪ#c}M⌱ᵨḄᘤCe3⌱G"RJᡈ"”?.M+6nᦪ#mḄᵯ{ᙳ{zḄᵯᦪ#ᜐᳮe3⌱G“ᔠᳮ”ᡈ“<ᔠᳮ”?Ḅᳮᵫe.⊤ptukᦪ123456ᵯ[UN0.51.01.52.02.52.8ᵯR஻A0.160.220.250.280.29ᵯR/Q3.16.88.99.7⊤tukᦪ123

6ᵯ£/£!51020ᵯR஻A0.300.200.12
5Mᵨ$,ᡠ\ᩭ“ᵯRᵯḄᐵ”.ᑖ{KḄ5஺ஹ10஺ஹ20஺Ḅ{ᵯ0ᐭaḄD¢£tu¤¥ᵯR⊤\ᦪ᝞⊤ᡠ\.NO¢£¦ḄᵯR§ᵯ<ᡂ©ªᐸabcde622.᝞$e“ᐝḄᢚ®”Ḅtu¯°¢£tumᑮ²⊤-ᡠ\Ḅᦪ#.
1³tuO´cµ¶·ᐝ³¸¹ºᐭ»☢v+vN½____¿O´À
2ᑖ᪆⊤-Ḅᦪ#cm·ᢚ®6ᐝ³¸¹ºᐭ»☢vᢚÂÃᐭÂḄÄᜧÆ3⌱G“Äᜧ”ᡈ“Ç”?,;ᢚÂ3⌱G“ᜧE”ஹ“ÈE”ᡈ“E”?ᐭÂÀÉᐝ³¸¹-ᚖËᑮ»☢vᢚÂÈEÌ.ᐭÂa0°15°30°45°60°©ÂP0°15°30°45°60°ᢚÂY0°11.3°22.1°35.4°40.9°
3ᙠ=RÎÏ-NOа᪷#ÑÒḄtum·ᐝḄᢚ®vÓᙠḼp<ÕÖᜐe×ஹØ⚪3Úᜧ⚪ᐳ2⚪ᐳ13ᑖ?23.ÜÝᎷᑮß᩟Ḅ᱅᱅âãNOaᩭ᱅᱅âäᜩᵨ᯼ᳫ᮱ᨨÆOᙠᦋᵨᵯᨨᘤᨨ.ëᜓ᝞$ᵬᡠ\,Ѳᔜp᪷-¸Ḅîïðᙠð⍝-ᐙóôõஹöឋøùḄöú.᝞$,eᐸûaᳮ$ᨵ“üý”“-ý”“þý”ÿ᫏
ᐸᵯR.ᵯᨨᘤᵯU0V,᫏ᵯ᳛550W,᫏ᵯ᳛U00W,6kg,ḄCi4=1.8XlJ/
kg࠷.

71"RḄ#.1"ᵯᨨᘤᙠ%᫏&'()*
5minᑁ,-Ḅ.3.ὃ⇋ᵯᨨᘤḄᦣᜫ
1,-Ḅᨬ4566kg7ᓣ%49᤬;7.<=ᶇ?@Aᦪ4Ꮇ᝞1,-ḄᵫFᩭᦔ᳛30%Ḅ᯼ᳫ᮱LM
◤⌕P᯼49ᓟRSTUV?V6ᵨᵯᨨᘤXᨨ6ᵨ᯼ᳫ᮱YḄᳮᵫ.g᯼=3X107j/kg24.ᙠ᝞[ᡠ]Ḅᵯ^
ᵯ_ᵯឤ.a
bḄ#21c.dᔠᵯfS,ᵯg⊤AiḄ]ᦪ1.3iஹᵯg⊤AzḄ]ᦪ1.5.জ"ᵯ_ᵯU.ঝ"ᵯmḄ#.ঞoᵨRpᣚᵯ᜜ஹR2Ḅ?s
6᝞[Ḅᵯg⊤A2Ḅ]ᦪa1.4i."ᵯRtὑḄᵯ᳛vஹwᔠxy⚪<{ᜧ⚪ᐳ3A⚪
ᐳ18ᑖ25.ᨒᨽḄ
.ᑮᙢḄ
Ḽᨴᐝ*
ᙢḄ<⌱“"ᡈ''ᙢ☢”,F.TUᙠ[)ᑮᨴḄᐝ^[________<஻¢⊤ᨴ஺26.ᢥ᯿¦
ᡃ¨©ª«¬Ḅ®
¯ᙢ☢Ḅ°±²ᑴᙠ700kPa´ᑁ
µᨵ·¸¹
ºX»4ᑭ½
ᾖ¿À©.ᨵ?¬Á3tḄ6ª«
᪶éª43Ä▭ƪ9t,᝞ÇÈs«É^☢ḄÊË☢0.02m,Ès«ÌᙳᑖÎᡠᨵÏÁ.gX10N/kgÐÑÒÓÔÕ
«¯^☢Ḅ°ᔲÀѦ×ᵨᡠØḄᱥᳮÚÔÕÀ

8©ḄᓻÜ<Ý⌕"ÔÞß27.[ᵬáâ'ᵨḄᵯãäᐸåæ.ᵯã᜜çxᑮèéḼê⁐éᳫḄìÕ@Ò
⚔çîᨵÐïðḄ@ÒñçÉᵯãᑁñòÐ
óᡂ,ê⁐éᳫᢣ]ãᑁ
ᐸöᑮḄéy<“ᜧ÷”ஹ“ø÷"ᡈ“A÷”ùúÁy.[ûü]ᵯãPḄᨬᜧL7L,oÆL.[ýü]ᵯãPḄᨬA
þᵯãÆᨵᨬA*
ãᑁḄ<“ÿ”ᡈ“”ᵯᙌ.ᵯᵯᵨḄᜮᑣAB.ᵯ!"Ḅᵯ#$%&'?ᵯ)$%&*?+ᵯ,-.Ḅ/0$20࠷,ᵯ1.ᦔ᳛$90%,ᵯ!4.2min,4:জᵯᑁ.Ḅ89%&ᓟ;?ঝ.==>1??[1L=1OW,c.=4.2X1@J/
kg࠷,ᜧDE$1᪗GᜧDE]IὃKᫀMஹᓫ⚗⌱R⚪TUᜧ⚪7V⚪W⚪3ᑖᐳ21ᑖ1ஹDூ
᪆௃᪷[⚪\“]ᑡ_`Ḅᦪ[\ᨬcd▭Ḅ"ghU⚪ὃijkl\mᱥᳮ9Ḅ_`pᔠjklḄrsjᱥᳮᓫtḄuvwxyᔠd▭Ḅ⌱⚗ᓽg஺ூ
௃A.ᜮ|}Ḅ~ᙠ70pmMḄ%ᙠ7
Hun=0.07mm஺ᦑAyᔠd▭B.MᙽḄ89ᙠ6gMᐗḄ89%ᙠ6g஺ᦑByᔠd▭C.ᑴ"Ḅ᳛$1000W,ᦑCyᔠd▭D.MᦟḄ$170~200m3,᪷[Ḅ¡¢g£ᦟᑁDḄ89m=pV=1.29kg/m3x200m3=258kgc300kg,ᦑDᨬcd▭஺2ஹA

9ூ
᪆௃¤9ᢣ¦¤ḄᜧV¦¤ḄᜧVᵨ§ᩭ⊤ªᡠ¬⌱A.3ஹDூ
᪆௃ᑭᵨ¯᜜±Ḅᓄ³ᦔ´ᑮ¶ἠ¸◚ºḄ᪗»¼½¾¿k₯ᐝᦑA┯ÃÄÅÆÇÈᑭᵨḄᐝḄ~±ÉÊᦑB┯ÃËᴻÍᜋ⌼ᡂḄᐝÑÒᵫÔᐝḄÕ☢½¾×ØḄᦑC┯ÃᵨÙᜧÕÚÛÜἠᑭᵨÝÞÕᡂßᵫÔᐝḄᢚ¾¢ᡂḄᦑDá.4ஹBூ
᪆௃Aஹᙠᒴã~±äåḄæ\ᵫÔVçᐹᨵêឋì~íØîïᙠðᙢᦑAáyᔠ⚪òBஹVçᒴãóᩚ"ÅjᩚḄõöVç÷ᑮḄøöᨵ!ᵨᙠùM~±¸ᡠ¬úöMjû⊝öᦑB┯Ã,yᔠ⚪òCஹ$■þêឋÿᩭḄᓻ⌕ᐰᦑCᔠ⚪Dஹᙠ⍝᝞"ᡠ$Ḅ%&'ᜫ᪷*+,-./012345ᒴ789:;ᦑDᔠ⚪.5ஹDூ
᪆௃A.ᵫᵯ?@12ABᔠSiCDEᙳGA┯I.B.ᵫᵯ?@12ABᔠSiCDEJGKBᔠ”LGB┯I.C.ᵫᵯ?@12ABᔠSiMDᐝL2GKBᔠS2OPDLiGC┯I.D.ᵫᵯ?@12ABᔠSiOPDLiGKBᔠS2MDᐝL2GD.ᦑ⌱D.6ஹAூ
᪆௃A.RSTUSVḄWXSYᡂḄ[W\T]ᓄ_`.ᡠaA⌱⚗TḄ.B.cᜩᵨᵯfᡧhḼjᡧf,jlᑮnoTpqᡧfrstuvwx]ḄXyXy⌕ᔾ{|}~jvlᑮno,.ᦑB┯.C.᜜9~₯ᐝᱥyᐝᑴᡂ.ᦑC┯.D.j⌼ᙢᳫ5ᒴ7ᙊᕜ:;:;᝱ᦋ$ᑮ⊝%ᵨ.ᦑD┯.7ஹAூ
᪆௃

10A.Ḅ¡w¢£¤¡w¢US¥7ᜧ§¨¢US¥7᪷*¥v¥7©ᜧª«©[¡w¢USª«[§¨¢ª«$ᑮᔣwḄᓣ%ᵨ.ᔠ⚪.B.‷$ᑮḄ¯%ᜧ§°%}wᓣḄ.ᔠ⚪.C.{Sᳫwᓣ{Sᳫ$ᑮḄ¯%ᜧ§°%.ᔠ⚪.D.±²³´µS±²¶µS.·ᔣ¨Ḅ%ᱥvP%ḄᵨT¸¹ḄµS¶±².·ᔣwḄ%º;±²wᓣ.ᔠ⚪.ஹ»U⚪¼½ᜧ⚪7[⚪ᐳ21ᑖÀ8ஹ3009000ூ
᪆௃;ÁÂஹÃÄஹÅᧇஹÃᐹஹÃjḄÈÉÊ"=2.5kg+7.5kg+20kg+60kg=90kg,;ÁÂஹÃÄஹÅᧇஹÃᐹஹÃjḄÈ°ÊG=mg=90kgX10N/kg=900N,Vn=3,I1,F=-G=-X900N=300N33ᵫ@2ËÌÍᵫÎÏ;ḄÐÑqᱥvwᓣÐÑḄ3ÒÓ!|ÊW=FS=300NX3X10m=9000J9ஹ[:;ூ
᪆௃…×|ØÙw¤ÚØÙḄÈ°%Û[᪷*ܯᱥvḄ°%ݧÍu°%12ÊÞØÙ$ᑮḄ¯%4[;à…×ÑØUÙ…¸h§ØUÙ……×T:;Ḅ.10ஹ35%áâãäூ
᪆௃p{Ḅᦔ᳛Tᢣᵨᩭ5ᨵᵨéḄÉêµᧇëᐰµìíîḄÉïðᡠaᵫᑁµḄÉ¥ᔣ@1òᑁµḄ{ᦔ᳛Ê7=1-25%-40%=35%ᙠîóV{ô⌕Tõö÷øöõö÷øöḄµìíîᜧÉḄùú÷ûSᡠa⌼ᡂᜧSãä&,ᵫ§{ᔜýþḄÿ
ᑖḄ⌼ᡂ.11ஹ0.12.601.3ூ
᪆௃ᵫᑖ1mmᓽ0.1cm,ᙌL=3.60cm-1.10cm=2.50cm,"=20,ᦑL2.50cmd=—=---------=0.13cm=1.3mmon2012ஹ!ឋ#$

11ூ᪆௃ùjᙠgញᑷjùj«ᑮ᜜úûᜐluýþ᝱ᵫlÿឋ
ᯠᢥ᯿ᩭḄᔣ
ᡠ.ᐰᡡᜧ!"#$ᐰ%&'ᕒḄ)*
+,-..13ஹ<>15ூ᪆௃34567897:ᑖ<=>W??ILM=20NX2m=40J,W2=FL=15Nx3m=45J@A"BW1VW2,ᓽDE☢BA2cwW5ᱥHᡠḄ97A$IJ=ᵨீM
N5ᱥḄHOPQ
᪷STU?=—"B
567Ḅ7᳛P|W^=Gft=10Nxlm=10J,nklm
opᱥᡠq᥅s6Ḅt᜜7>ᱥDE☢A8HᡠqḄ᥅s6>ᡝg=w=15N஺LAB2m14ஹ2.06x10sIyzI6xl
6ூ᪆௃{⚪ᑖ᪆>“ᓭ[”qᑮḄ)*=>p=pgh=l.03x1
Fkg/m^10N/kgx20m=2.06x105Pa☢
᣸Ḅyz
ᵫᳮ"B
qᑮḄ6yzIᦑᙠHqᑮḄ6>FMGMIII᣸g=600x103kgx10N/kg=6x106N.ூὃ௃Ḅ)*Iᳮஹ⚪8ᐳ7ᑖ:Gூ᪆௃ᵨ6?ᱥ)ᙠ¡¢ᜋ☢¤☟¦
ᱥᙠ¡¢§ᔣ¤qᑮ¡¢ᔣ¨Ḅ©6ஹ¡¢ᔣ¤Ḅ᥅s6I©6ª©«¡¢ᔣ¨¬
᥅s6ª©«¡¢ᔣ¤¬
᪗P¯Ḅ°
±²3ᩩ´µḄ¶P·஺᝞ᡠ¹>

12G16ஹᶍூ
᪆௃᝞()ᔆḄ+ᵨ-ᵫ0ᔣᐸ0ᚖ23⊤Ḅ56)Ḅ)7.ூ
᪆௃8ᳫ:ᑮ<=>)?)@Aᢝ)C8ᳫ:ᑮD=>)ᜐF☟HI᝱ᓽK⊝I᝱CD=>)5K⊝)ᜧNOPஹQᔣOR஺᝞ᡠUVஹWX⚪Zᜧ⚪ᐳ5N⚪ᐳ20ᑖ\]^_`0.9W152.5aᢝbᱏdefgᔠSஹS2,ijSi-A(U-2.5V)6ூ
᪆௃

13n15W᪷lN]^Ḅmnᵯ#@mnp᳛,N]^stu+Ḅᵯv,I=?=w"=0.6AIu2.5vᡠzᵯv⊤Ḅ{|⌱~Ḅ0~().6A.᝞U(2)ᵯ`sbᱏᑮᨬbᘤᐭᵯ`Ḅᵯᨬᜧᵯv⊤ᨵᦪᵯ``.ᵯ]fᵯ#⊤ᦪ]_`.(3)ᵯ#⊤2.5vN]^stᐝḄᵯv0.36A,ᑣᐸmnp᳛UP=UI=2.5VxQ36A=0.9W.(4)ᵫ⊤Uᵯ`2ᵯvᨬNbᘤᨬᜧᡠzbᘤḄᵯu9V-1VR.==-------a300>20C(bᘤḄᨬᜧᵯ)bᘤᵯ¡N<¢N]^Ḅmnp᳛◤⌕¥I0.26A¦§ὶ©>15cḄᵯ.ூ«¬௃(1)gᔠSஹS1,ijS2,®bᱏᵯ#⊤¯°Ḅ]=Ḅᵯ#±]Ḅmnᵯ#2.5V,ᡠzᵯ#⊤Ḅᦪ2.5VI(2)aᢝbᱏdefgᔠSஹS2,ijSi,²ᵯ#⊤¯°Ḅnᵯ@]=ḄVU-25VnᵯḄ15Q,ᡠz³Ḅᵯv.15஺U-25V1(3)]^mnp᳛Ḅ⊤´µPm=UQm=2.5Vx=-A(U-2.5V).150619ஹ¶{·ᩈᙽºᳫ»¼b½¾¿ÀÁᑴ{ூÃ᪆௃ÅÆ“ÈᜧNɶ{ḄᐵË”ᐹÎ0ÏUfж{ḄºᳫÑOÐḄÒÓºᳫᑮ´ÔK☢Ö°OÐḄ·³×Øᩈᙽ»¼ᔣÙ®½¾Ḅ¿ÀᩭÛÜ=ÝÞßÓºᳫÈḄᜧN.WX³|2àÈḄᜧNáᣚᡂᩈᙽ®½¾Ḅ¿À±²ᵨᑮáᣚÏCÐÈÉ·@¶{ᨵᐵÅÆÈɶ{ᐵË◤Áᑴ·f±²ãᵨ<Áᑴ{Ï.20ஹäᜧåNᱥÎᑮçèéḄ½¾ᜧ¿¾å_ூÃ᪆௃êëìí⚪î:ᵨäᜧé×ØðñḄòᢣ²òᢣᙠçèéḄᯖö÷ᑁᡂäᜧஹsùḄúûCüý¿ᜐḄᱥÎ,²ᱥÎᙠçèéḄ2þᯖ½÷᜜ᡠᡂ᎔ஹḄ

14:ᵬᱥᑮḄ!"ᡠ#$%ᡂḄᜧ#'(ᱥᑮḄᨵᐵ;,-(.ᵨ:(1)ᑖ᪆⊤34ᦪ6#7ᱥᑮḄ89ᐝ;<ᡂḄḄᜧ=8ᜧ">?@ᑮḄ=8A;(2)⌕CᡠᨵḄDᱥEᐭGD᪾◤⌕JᜧᱥKLMᑮNᨎḄ◤⌕P.ᡠ.C᯿STU"V,XᨵYᑴᵯ\]Ḅᵯ^!_ூ
᪆௃(1)`abcᵯ\Ḅd4ef_\ᘤ.“ibc_stuᵯo4ᵯv_ᜧ_\ᘤwᐭ\x_ᦑ.zᐸqjn|}nᐭᵯo4᝞ᡠ(2)KLᵯoᔠᐵ.zeᱏP\xᨬᜧᜐᓽA]ᵯv⊤ᢣ┐Xᨵb!stuᵯo#'oᵯ^⊤ᨵᦪtuᵯ^⊤(ᵯwᑣ(ᵯ^⊤ὶḄo᜜ḄᵯoḄᑣ(ᵯ^⊤ὶḄbcoLᦑ⌱C(3)4ᵯv⊤aK00.6A,ᑖxK0.02A,ᵯv⊤ᦪK0.2Aᵫ⊤4ᦪ6#7¢4£d>bc]ᵯ^2.0V,ᵯv0.25A,¤>bcᵯ\xKU2V=—=8J2ᵯᵫ⁚¦ᵯ§lὶ¨ᡂᑣᵯᵯ^K3V,¢1£d>bc]Ḅᵯ^K0.5V,ᑣ;I0.25AU'2.5Vef_\ᘤ]Ḅᵯ^KU=3V-0.5V=2.5V,¤>_\ᘤwᐭᵯo4Ḅᵯ\/?»=—=—7TT~15.6Q>10Q,©1,U.loA

15tuª⌱ᵨḄef_\ᘤ.«2(4)bcḄᵯ\¬Ḅ_ᓄ¯_ᓄ!i°±xᦑG²ᙳxXᨵ´µ!ᔠᳮḄ(5)d>ᑖ·¸5஺ஹ10஺ஹ15஺ᵯ

16ᐭºbc»¼d½¾ᵯv⊤ᦪ᝞⊤¿ᡠᑖ᪆⊤¿ᦪ6#7¼ÀḄᵯvÁᵯ\!ᡂÂÃÄÅ£d4ᵯv(ᵯ\ḄÆÇ!"Ḅ(ᓽᵯ^!")ᡠᐸºÊXᨵYᑴᵯ\]Ḅᵯ^!_.22ஹÂËᢚËJᜧXᨵᣚᵨᐸÎuÏÐѤdூ
᪆௃(1)ᐝÒÓÔÕËᑮÖ☢>z">?ØÂËÙᢚË@Ú(2)ᵫ⊤4ᦪ6#7ᐝÒÓÔÕËᑮÖ☢>ÛᐭËÜ!Jᜧ>ᢚËÜݬÞJᜧᦑᢚËܬᐭËÜḄ_ᓄᐵßᢚËܬᐭËÜḄJᜧ¯JᜧÄᢚËÜᐭËÜ.(3)Òd¼#$%d4àᙠ!â.ãᣚᵨᐸÎuÏÐäѤd©᪵M%Ḅ,-zæᐹᨵèéឋ.ëஹìí⚪(ïᜧ⚪ᐳ2⚪ᐳ13ᑖ)23ஹ(1)88a(1)4.95X105J(3)45.8°C(4)0.055kgNñஹòóô.ூ
᪆௃(1)ᵫ7⍝ÛSiஹSIEᔠ>ᵯ\ὶᵫὶöᵯ\ᐸ4÷iᵯ\ᡠ¤>öᵯ\ᨬᵫø=2-7⍝¤>ù᳛ᨬᜧKû᫏RH2ÛýᔠS1>KRḄþᓫᵯ
ᔠS1RḄᓫᵯ
ᵫᵯᵫ=J⍝ᔠRSi᫏ᔠ&᫏ᵫ=”⍝RḄRt=Ei=(W=88Q;R4550W(1)ᵯᨨᘤᙠ#᫏$%&'()ᵯ*&'ᦑ#᫏Ḅ,-᳛/ᓭ=B+Pi=P+P=550W+1100W=1650W2ᵯᨨᘤᙠ#᫏$%&'5minᑁ/4Ḅ5e=Pf=1650Wx5x60s=4.95xl05Js(3)᪷7஺⍝6kg9:ᓣ#Ḅ<Q4.95X105J='=₢=1.8xlO3J/(^?࠷)x6kg~45,8°C(4)@(1)/4Ḅ5ᵫAᩭᦔ᳛30%Ḅ᯼ᳫ᮱GH,

17Qᵫ7=3-⍝᯼ᳫKLMNḄ5:Q4.95x1(/jQ=1.65xlOAJØ=—=----7777-----730%ᵫ஺M="Q⍝◤⌕L᯼ḄT5Q_1.65xIO஺j=0.055kgU-3xl()7j/kgWᵨᵯᨨᘤḄY5ᑭᵨ᳛#[\ஹ^_`ᡠbWᵨᵯᨨᘤcᨨdWᵨ᯼ᳫ᮱e.24ஹ
16g
231h
31.2iᡈ1.6iூ
᪆௃ᵫᵯ
k⍝2l&mὶᵯo⊤AiqRir
Ḅᵯoᵯo⊤A2qs
ᵯoজᵫhuvw⍝R(xḄᵯyUi=hRi=1.3Ax2m=6Vᵫk⍝mὶᵯ
ᔜr
(xḄᵯy{|}ᵯyᵯ~Ḅᵯyᡠbᵯ~ḄᵯyU=Ui=6Vঝmὶᵯ
s
ᵯo|ᔜr
ᵯoᡠb᪷7⚪⍝Ḅᵯo2=/-/I=1.5A-L3A=1.2A,U,6VDᵫhuvw⍝ᵯḄ&==777ᐗ=31஺ঞ᪷7⚪⍝2ᵨᵯRiᣚᵯ&ஹ&Ḅ)kḄᵯo⊤A2Ḅᦪ1.4A@ᵨᣚᑣRilmὶs
ᵯo஻=1.4A,&ḄᵯoᯠA=L2A,ᑣRIḄᵯo/,=r-/=1.4A-1.2A=1.2A,2ᦑᵯKiὑḄᵯ-᳛i=஺=6Vxl.2A=L2W@ᵨRᣚRzᑣRlRimὶs
ᵯor=1.4A,Ḅᵯoᯠh=1.3A,ᓽRḄᵯoh=I'-ht=1.4A-1.3A=1.1A,ᡠbᵯRὑḄᵯ-᳛/i=U/i=6Vxl.lA=1.6W.ஹᔠY⚪¡¢ᜧ⚪ᐳ3¥⚪ᐳ18ᑖ§25¨©©☢4«☢¬ᙢ☢4®¯¬Mூ
᪆௃

18°☟Ḅ©☢Y4«☢¯¬ᙢ☢²³°ᙢ☢4®¯¬´Ḽᨴᐝ¸ᨴᐝ¹©☢4«☢¯¬ºᐭ¼Ḅ½¾¯¬ᐝ¿À¼Á©☢Ãᙢ☢4®¯¬ᨵÅÆḄᐝ¿ºᐭ¼Ḅ½¾¼ÁÂᙢ☢Ç.ᐝ
k᝞kூʾ௃©☢ᙢ☢*¯¬ᨴᐝ©☢Ìᨴᐝ4Ḅ«☢¯¬ᐭ¬ᐝ¿°Íᐝ¿¯¬ᐝ¿Î°Íᐝ¿ᙢ☢Ìᨴᐝ4Ḅ®¯¬ᐭ¬ᐝ¿°Íᐝ¿¯¬ᐝ¿Ï°Í¬ᔣᔜ)Ñᔣ¼ÒᑮḄÔÃÕ<ᵫºᐭ¼½¾ḄᐝḄÀÆᩭÖvḄ஺26ஹ81:×Ì
☢ḄyØÙÚv82:ᵫÙÛÜÝᑁÞyᜧß᧕ᰦÝÑᔣᜫãNäᦑᵫÙÛåឋᜧᙠ⍗◅ébᨵᦔᑷ×Näᦑூ
᪆௃ë⚪ᑖ᪆প×ÜÌᙢyØî=ᢝ81ᑖ§=3+%:g=83+9:xlOஹgxlWAtg=iOxi^pa84ᑖ§6s6x0.02/1•.T.OxlUFaAl.OxltyPa,.,•×Ì
☢ḄyØÙÚv81ᑖ§82:ᵫÙÛÜÝᑁÞyᜧß᧕ᰦÝÑᔣᜫãNäᦑ¡ðÌÊñ1ᑖ§ᵫÙÛåឋᜧᙠ⍗◅ébᨵᦔᑷ×Näᦑ¡ÏðÌÊñ1ᑖ§ὃÊyØḄóôÙÛḄᓻö.Ê÷ὃøùyØḄóôᐵûóôüýþ×Ḅÿ
☢6
☢ḄᵨឋḄᓻ.27ஹᘤ!"1.5#ᙢ%&%5A44஺1.5kg(ூ
᪆௃81:ᵯ*+,Ḅ+-./01ᘤᐸ⚔4ᨵ6ᐸ748,ᑁḄ+:;;᪀ᡂᘤᡠ☟@A+-.B+-8,ᑁḄ+-/CḄDᵫ"F⁐HᳫJHᙠL☢Mᡠ
HNOP⊝ᓽᜧ0T!D+-.ᑁL☢UVᑁL☢/᪵ᕈYZ[ᦪA]%^8YL☢74TPᵫ_`⍝74b^1.5L,ᓽcd+UeL5LIf,ᑁ+☢gᑮᨬ0+UAjklᐰḄᓽ+nopᵯ*ᙌ.82:lᐰᵨᵯ⌕st6uvḄ;wxy&ஹz{ஹMᙢᡠAM|Ḅ6;ᙢ%8y|Ḅ6;&%.

19(3)᪷SP=U/B⍝
ᵯíîïðñHḄᵯò!>/=£=U"õ=5AIU220V᪷S?=4;B⍝
ᵯíîïðñHḄᵯ÷!>R=J(220V)2=44CRR1100W/72(4)জl.5L=L5xl()-3m3,ᵫ஻="B⍝
ᵯíîᑁḄúû!>7n=/>K=1.0xl03kg/m3xl.5xl0-3m3=1.5kgঝ4.2min=4.2x60s=252s,Wᵫp=—B⍝
üὑḄᵯþ!>W=Pt=1100Wx252s=277200J,ᔾᦈḄ஺ᔾ=஻=90%X277200J=249480J,ᵫ஺ᔾ=4'⍝’ᓣḄ=249480J4.3X103J/(^?࠷)X^=3/6C,i=fo+Zlf=2O࠷+39.6࠷=59.6࠷<100࠷,ᓽ!"#$%.