2021年福建省泉州某中学中考物理模拟试卷（附答案详解）

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2021
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1714.ூXᫀ௃Aூ[᪆௃["Aஹ஺ஹₐᙠb?☢Cᵫt☢qₐ:3ᔣCḄᢝplₐ¡¢>£Ḅ¤ឋ0¦§lₐq☢¨>ᔣḄ¤pᓽₐq☢ḄpᦑAvwD┯%஺8ஹₐq☢Ḅp%ₐq☢:3ᵨᦑpᱥ%ₐpᱥ%☢஺ᦑB┯y஺Cஹₐq☢Ḅppᱥ%ₐpᱥ%☢ₐᑮḄupḄpᱥ%ᙢᳫpᱥ%ₐ஺¬3pḄpᱥpᱥ<®¯ᡠ(2¬3p%¯:3p}¬ὅᜧ®±஺ᦑC┯y஺ᦑ⌱"A஺ᱥ☟³ᙠb?☢Cᱥqb?☢Ḅpᜧ±tᱥḄup}´µ%up.p%ᵫtᱥḄ0¦¨>Ḅ.(1)4⚪ὃ¤pḄ¨>ஹpNupḄ¶·ஹpḄ¸¹±º.(2)ᙠb?☢CḄᱥqb?☢Ḅp±tᱥḄup}p»¼%up.(3)½3ᱥq·Ḅᱥp¾ᱥµ¢>¤ឋ0¦.15.ூXᫀ௃Bூ[᪆௃["Aஹᵫ¿À0-6sÁᑁÂÃᩚᔣCÅÆᦑA┯yBஹᵫ¿À6sÇ15sÁᑁÂÃᩚᔣCKᒴcÉÅÆz`0.6m/s,ᦑ6sÇ15sÁᑁCÊḄË%s=vt—0.6m/sx9s=5.4m,ᦑBvwCஹ0Ç18sÁᑁÂÃᩚÌcᔣCÅÆᙠÌciᔣCᑮÌcᔣḄupÌcᔣCḄ᥅ÎpᦑC┯y஺ஹᵫ¿À15sÇ18sÁᑁÂKÏÅÆᑮḄ᥅Îptupᦑ஺┯y஺ᦑ⌱"B஺(1)ᵫD-t¿Àᑨ+ᔜÑḄÅÆ_᝱(2)᪷Ôs=Ö×76sÇ15sÁᑁÂÃᩚCÊḄË(3)qØgpᑖ᪆ᑨ+᥅ÎpḄiᔣ(4)᪷Ôzᐵᑨ+upN᥅ÎpḄᐵ஺⚪ὃ=>Ù¿ᑖ᪆p%:⍝±⚪Ûz%Üᜧ஺Ý18⚓ᐳ30⚓

1816.ூXᫀ௃Bூ[᪆௃["àáqↈãä0åᘤ¡ḄpáæḄup®±ᡠ(ᵫp=çènáABḄupᑖ·`"GA=Fᵬ=^55ᵬ,G=F^=BàáA8Ḅéê®±ᑣ¬áḄup®±ᡠ(G—G,Pᵬ=P)$),ABᑣS*=—S=ìCS7=0.75S,zzAJᵬpᵬ)6QQPa)'ᵫS4=ᒹ=ènS,=2S)-Sᵬ=2S)-0.7SS)=1.25SîïᵬஹîḄáᐰ¡᎔ᐭóåᘤôᑣõᔠáqåᘤ¡Ḅ"pö=⁐==1.6p/=1.6x450Pa=720Pa஺M5ᑁS1.25Sᦑ⌱"B஺áqↈãä0åᘤ¡ḄpáæḄup®±᪷Ôp=9ø7á48qåᘤḄpᓽ`¬áḄup᪷ÔáA8Ḅéê®±ùᔠG=mgø7¬åᘤḄ☢úᐵ᪷ÔS7=ᒹûn7îóḄ☢úᐵïᵬஹîḄáᐰ¡᎔ᐭóåᘤôåᘤ¡Ḅp±t¬áḄupü᪷ÔP=9ø7õᔠáqåᘤ¡Ḅ஺⚪ὃ¸¹ýḄᮣR#ᵨ⍝áqↈãä0åᘤ¡ḄpáæḄup®±%ᐵÿ஺17.ூᫀ௃B2.30ூ᪆௃ᦪ⌕☢ᚖᦑ⌱Bᵫ1c!ᨵ10#$%ᡠ'(#$%)⊤1஻?஻?ᓽḄᑖ01Imn.ᱥ3451.00cm67853.30ᓽ67ᡠ'ᱥ3Ḅ91L=3.30cm-1.00cm=2.30cmoᦑᫀ1B2.30.Ḅ:;<ᵨ>?জA<ᵨBᐜADEஹᑖ0ஹGHᔲJK

19ঝMM:ḄNO<ᨵḄ(PQ☠STᱥ3ঞᦪ⌕☢ᚖVᑮᑖ0ḄX(NটZZ[TD\]⌕Zᦪ0^ᓫN஺H`aᱥᳮacdḄTDeᐹ<ᵨB⌕ghiḄDE^ᑖ0ᦪ⌕Vᑮᑖ0ḄX(NᐸiTDeᐹ6k(lmᨵᱯoḄ⌕pq:;rsᦪtu'஺18.ூᫀ௃x⁐zூ᪆௃{|}~xḄx⁐{|“ᐸ~ᐸ}”H᪷x⁐ᩭᑨḄᐳᔠ⌕“~᠒”ᢣḄH$~xḄz஺ᦑᫀ1x⁐z஺~xḄᱯᨵ#zஹxஹx⁐஺zᢣ~xḄᜧ$xᢣ~xḄx⁐Hᢣ~xḄᱯ⁐஺d⚪ὃ~xḄᱯcẠḄὃ¡¢£ᓫ஺19.ூᫀ௃251.5kg/m3ூ᪆௃(1)ᵫ஺=ⅉ«¬®ᑁ°ᩭ¬ḄDm=pV=10x10-3m3x2.5kg/m?=25xlO-3^=25g(2)ᒕ»¬Dm=25g-10g=15g,2ᒕ»¬Ḅ3½{¾ᑣᒕ»¬ḄÀ__15X10-3k_,3Pnl-v(10X10-3Æfl(°ᦑᫀ1251.5kg/m\(1)ʬ®Ḅ˽̬ḄÀᑭᵨm=pV«ᑮ°ᩭ¬®ÐḄ¬D(2)✌ᐜÒÓᒕ»¬ḄDᯠÕÖ᪷À×ÒÓᒕ»¬ḄÀ஺Ø⚪ὃÀ×ÌᐸÙᵨÒÓd⚪ÙÚÛᵫ¬®ᑁÜḄH3ᡠ'¬®Ḅ˽ᓽ¬Ḅ3½{¾஺20.ூᫀ௃8Ýᔣூ᪆௃®ßᜐ☟âã᝱å⊝ã᝱ᡠ'çᑮḄHå⊝è᥅êèëèH(6å⊝èì20⚓ᐳ30⚓

20®ßḄëèḄᜧ$18Mᡠ'᥅êèïH8M>ᔣëè>ᔣðñÝᔣ஺ᦑᫀ18Ýᔣ஺®ß☟âòᙠôaᜐå⊝ã᝱õᔠöèå⊝ᩩøᜧ$ðù>ᔣðñúᵨᙠ|(ᡠ'®ßçᑮûÝᔣḄ᥅êèüýù®ßḄëè஺d⚪ὃþÿ᥅⊝ᩩḄᳮᵨᳮᐵᭆᳮḄᐵ஺21.ூᫀ௃!"ᜧூ᪆௃%᎔'()*+,"ᜧ᪷.p=pg/i45)*6ᘤ8☢Ḅ:;"ᜧ<᝞>?@A)*6ᘤ8Ḅ:%F=pS=pghS>G;,᎔'A)*6ᘤ8Ḅ:%F'=p'S'=pgh!S'ீG;,BC45F'45AḄ+,:h=70cm-10cm=60cm=0.6m,AᑣARᑮḄ:;%p=p^gh=1.0x103kg/m3xION/kgx0.6m=6000Pa

21(2)ᵫ>456ᘤᑁḄ+,:h=70cm=0.7m,ᑣ6ᘤ8Ḅ:;%p■@=pg/i8.=1.0x103kg/m3xION/kgx0.7m=7000Pa஺ᦑᫀJ%6000<7000o(1)᪷.>PQAḄ+,ᑭᵨp=pg/iQARᑮḄ:;<(2)᪷.>PQ6ᘤᑁḄ+,᪷.p=pg/iQ6ᘤ8Ḅ:;஺⚪ὃ)*:;Ḅ+,()*Ḅ+,ᢣḄᑮ)☢Ḅᚖ}_ᑮ6ᘤ8Ḅ)Ḅᳮ⚪Ḅᐵ஺23.ூᫀ௃%!ᳫ᤮ᑮAAR}ᔣgḄo¡¢£¤ᔣfḄ¥஺¦!ᳫḄo§¨ᑖª¡o¥Ḅ{ᔣ«iᩩᨵᔣ®¯ᑖªᵨG°⊤²᝞>ᡠ²%ஹGூ᪆௃«Ḅ²³>✌ᐜ⌕ᱥ*¸¹Rᑖ᪆ºᱥ*R»¼⌕ᐜᑖ᪆Ḅᜧ!ஹ{ᔣ½ᵨ¾ᢥ᯿«>Ḅ⌕«Qᔜ¼஺⚪ὃḄ²³>Ḅ«Âᐵ!ᳫ᤮ᑮAA¸¹?ÃḄRᑖ᪆⌕ijᡠ«Ḅ½ᵨ{ᔣ¯Ä³ᙠ®ÆÇ᪗Éᡠ«Ḅ஺24.ூᫀ௃%Ê〈Ìi¨ᒴÎᔣfÏḄᱥ*ᱥ*RᑮḄ᥅/Ḅ½ᵨᙠÐÑ☢f{ᔣ¹cÊ〈Ìᔣfᱥ*Ê〈ÌḄ:F½ᵨᙠÐÑ☢f{ᔣᚖ}cÊ〈Ìᔣg¦Ḅ½ᵨ¡Ḅ{ᔣ½ᨵᔣ®ᓽ4½Q᥅n:Ḅ²³>᝞>ᡠ²%ூ᪆௃ᐜÃÒᱥ*RᑮḄ᥅n:Ḅ½ᵨn{ᔣᯠ(¦Ḅ½ᵨ¡Ḅ{ᔣ½ᨵᔣ®ᓽ4½Q᥅n:Ḅ²³>஺Ô22⚓ᐳ30⚓

22⚪ὃ½Ḅ²³>½Ḅ²³>×ØᱥᳮḄÙὃÚ⚪½Ḅ²³>A⌕ᐜÃÒḄ½ᵨnḄ{ᔣᯠ(¦Ḅ½ᵨ¡Ḅ½ᵨ½ᨵᔣ®ᙠ®ḄÆÇ᪗f⊤²ḄÛÜ஺25.ூᫀ௃Þ320.8x103áᜧ*Yᔠ4Pூ᪆௃%(1)ᜩ@ᙠå☢fæçṹéê᪗ëìí,fîïð᫡òÒAᢣ┐áᔣᑖ,ôḄõö÷ÉᜩḄÞÇfø⊝ùúᔣføḄÞÇû⁚஺(2)ýþÿᵨ
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Ḅ!1¢£¤¥¦8§!¨ᵨḄ¥¦1f©⌕«¬®஺26.ூmᫀ௃Y±I⊝²±³ஹ´ᨵµᑴ²±*·*◤⌕0.39.8ூ¹᪆௃¹(1)AB»¼1½¾8±¿ÀÁÂTI¥ᔣÃḼᱥᙽÇᒴÉÊËÌ1ÍÎᱥᙽᜐ)I⊝Ð᝱1ᵫY±I⊝ᩩÓ1ÔÌ᥅Ö±Ḅᜧ;)½¾8±¿Ḅ×ᦪ1¢ᵨᑮÙᣚ¦O(2)ᵫÛᵬஹ³ᡠ×AB1Þ☢Ḅßà¼!áâᱥḄ²±*á1cᵨᵬஹ³ᡠ×ABãäÔÌ᥅Ö±ᜧ;²±ḄᐵæOẆäÔÌ᥅Ö±ᜧ;Þ☢ßà¼!ᨵᐵÎ1◤⌕µᑴ²±á1Þ☢Ḅßà¼!*á1ᦑ◤⌕èÛ³ஹ´ᡠ×ABO(3)ᵫÛᵬஹéᡠ×AB1Þ☢Ḅßà¼!áâᱥḄ²±*á1ᵫ)ᨵµᑴᱥḄ²±á1êḄëì┯îḄO(4)᝞Ûéᡠ×ḄAB¥ᫀ1Aᙢ☢ᜐ)☟óÐ᝱1ôᑮḄ8±¿Ḅñôᑮ᥅Ö±LfI⊝±1ᜧ;1ᦑõ¥ᫀ*◤⌕öᩈøÇᒴÉÊËÌO(5)ᱥAḄù±G=mg=0.6kgXION/kg=67VOᵫᵬÛ1ᩈᙽA8ḄÌ᥅Öüᦪᜧ;L஻4=3=þ=0.3OFoNÿ4ஹBᩈᙽḄ᥅ᦪᜧ0.4,Bᙢ☢Ḅ4ஹBḄFB=14N+6N=20Nᑣᙢ☢BḄ᥅'f=g=0.4x20N=8N*B᪷,Ḅ-.ឋ0A8Ḅ᥅ᜧ'f=1.8W*A᥅Ḅ3ᔣ5678ᔣ9ḄᵫḄᔠᡂ0=F=%+%=8N+1.8N=9.8/V*ᦑDᫀ'(1)H8⊝*(2)*KஹL*(3)NᨵPᑴRS*(4)R◤⌕*(5)0.3*9.8஺(1)ᵨYZ[\78ᒴ^=ᱥᙽᱥᙽ`ᒴ^abcᜐ8⊝e᝱ᵫ8⊝ᩩh0i᥅[\Ḅjᦪ*(2)ᑖ᪆mjno᪷,noPᑴḄSpqnors0tuvnowx*y24⚓ᐳ30⚓

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Ḅᵨcs⍝ᔠ⚪஺30.ூCᫀ௃¤;(1)¥¦§¨©Ḅª;v=-=48km—80km/h.t0.6/1'(2)᪷G=zng´¥¦§Ḅµ¶:

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