[err:数据源标签'PE.DataSource id="cone" datasource="资料_内容页" itemId="93124" xslt="true" wu="0"'返回数据错,原因:名称中不能包含“<”字符(十六进制值 0x3C)。 行 144,位置 12。,源码:931243 <meta http-equiv="refresh" content="0;url=/Item/93124.aspx?wu=1" /> 2170教科版八年级物理《4.5科学探究:凸透镜成像》习题(2份)106.00KB106.00Bdocczwlzxczwlzxczwlzx/UploadFiles/UserPic/UserAvatars/15219_150_150.jpg <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?id=93124"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?hitstype=dayhits&id=93124"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?hitstype=weekhits&id=93124"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?hitstype=monthhits&id=93124"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetBrowseTimes.aspx?id=93124"></script> <img src="/images/star4.jpg" /> czwlzx1凸透镜成像2017年08月24日/UploadFiles/nopic.gif 1 、用凸透镜正对着太阳,发现在凸透镜的另一侧 10cm 处的光屏上得到一个亮点,寻那 1 、用凸透镜正对着太阳,发现在凸透镜的另一侧 10cm 处的光屏上得到一个亮点,寻那么将点燃的蜡烛放在位于凸透镜前 15cm 处时,光屏上得到的像是( )     A 、正立放大的像  B 、正立缩小的像     C 、倒立缩小的像  D 、倒立放大的像     2 、某物体放在离凸透镜 20cm 处,无论怎样移动光屏,光屏上始终得不到像,则该凸透镜的焦距可能是(      )     A 、 30  【内容简介】 1 、用凸透镜正对着太阳,发现在凸透镜的另一侧 10cm 处的光屏上得到一个亮点,寻那么将点燃的蜡烛放在位于凸透镜前 15cm 处时,光屏上得到的像是( )     A 、正立放大的像  B 、正立缩小的像     C 、倒立缩小的像  D 、倒立放大的像     2 、某物体放在离凸透镜 20cm 处,无论怎样移动光屏,光屏上始终得不到像,则该凸透镜的焦距可能是(      )     A 、 30  cm             B 、 15 cm          C 、 10 cm            D 、 5 cm   3 、小明同学在一次实验中,不小心用书本挡住了部分凸透镜,你认为此时在光屏上所成的像是一半呢还是完整的?你准备如何验证你的想法呢?     4 、一个物体在凸透镜前 20 cm 处,在屏上成一倒立缩小的像,则透镜的焦距 f (     )     A 、 10 cm10 cm        C 、 f<10 cm            D 、 f>20 cm   5 、许多家庭的门上都装有防盗门镜(俗称“猫眼”)。从室内透过防盗门镜向外看,可以看到来客的正立、缩小的像。由此可以断定,此时防盗门镜的作用相当于一个(     )     A 、凸透镜                B 、凹透镜       C 、凸透镜和凹透镜         D 、玻璃砖     6 、如图所示,凸透镜的焦距为 8 cm ,当物体 AB 放在该凸透镜主轴上距离凸透镜 12 cm 的位置处时,调整光屏的位置使光屏上出现该物体清晰的像,则在光屏上得到一个(     )                                                                                     A 、倒立放大的实像                B 、倒立缩小的实像     C 、正立放大的实像                D 、正立放大的虚像                      ........... 1 、用凸透镜正对着太阳,发现在凸透镜的另一侧 10cm 处的光屏上得到一个亮点,寻那么将点燃的蜡烛放在位于凸透镜前 15cm 处时下载地址1|sj/2017/8/201708240727371001.doc$$$下载地址2|sj/2017/8/201708240727393031.doc<p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">1</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、用凸透镜正对着太阳,发现在凸透镜的另一侧</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">10cm</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">处的光屏上得到一个亮点,寻那么将点燃的蜡烛放在位于凸透镜前</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">15cm</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">处时,光屏上得到的像是( )</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">     </span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">A</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、正立放大的像 </span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> B</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、正立缩小的像</span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> <span style="mso-spacerun: yes">    </span>C</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、倒立缩小的像 </span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> D</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、倒立放大的像</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">     </span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">2</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、某物体放在离凸透镜</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">20cm</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">处,无论怎样移动光屏,光屏上始终得不到像,则该凸透镜的焦距可能是(</span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> <span style="mso-spacerun: yes">     </span> </span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">)</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">     </span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">A</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">30<span style="mso-spacerun: yes">  </span>cm<span style="mso-spacerun: yes">             </span>B</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">15 cm<span style="mso-spacerun: yes">          </span>C</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">10 cm<span style="mso-spacerun: yes">            </span>D</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">5 cm  </span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">3</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、小明同学在一次实验中,不小心用书本挡住了部分凸透镜,你认为此时在光屏上所成的像是一半呢还是完整的?你准备如何验证你的想法呢?</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">     </span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">4</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、一个物体在凸透镜前</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">20 cm</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">处,在屏上成一倒立缩小的像,则透镜的焦距</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">f</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">(</span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> <span style="mso-spacerun: yes">    </span> </span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">)</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">     </span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">A</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">10 cm&lt;f&lt;20 cm<span style="mso-spacerun: yes">        </span>B</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">f&gt;10 cm<span style="mso-spacerun: yes">        </span>C</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">f&lt;10 cm<span style="mso-spacerun: yes">            </span>D</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">f&gt;20 cm  </span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">5</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、许多家庭的门上都装有防盗门镜(俗称“猫眼”)。从室内透过防盗门镜向外看,可以看到来客的正立、缩小的像。由此可以断定,此时防盗门镜的作用相当于一个(</span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> <span style="mso-spacerun: yes">    </span> </span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">)</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">     </span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">A</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、凸透镜</span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> <span style="mso-spacerun: yes">               </span>B</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、凹透镜</span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> <span style="mso-spacerun: yes">      </span>C</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、凸透镜和凹透镜</span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> <span style="mso-spacerun: yes">        </span>D</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、玻璃砖</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">     </span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">6</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、如图所示,凸透镜的焦距为</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">8 cm</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">,当物体</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">AB</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">放在该凸透镜主轴上距离凸透镜</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">12 cm</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的位置处时,调整光屏的位置使光屏上出现该物体清晰的像,则在光屏上得到一个(</span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> <span style="mso-spacerun: yes">    </span> </span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">)</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">     </span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US">                                                                             <span style="mso-bidi-font-weight: bold">     </span></span> </p> <p class="MsoNormal" style="text-indent: 21pt; margin: 0cm 0cm 0pt"> <span lang="EN-US" style="mso-bidi-font-weight: bold">A</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、倒立放大的实像</span> <span lang="EN-US" style="mso-bidi-font-weight: bold"> <span style="mso-spacerun: yes">               </span>B</span> <span style="font-family: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、倒立缩小的实像</span> <span lang="EN-US" style="mso-bidi-font-weight: bold">     </span> </p> <p> <span lang="EN-US" style="line-height: 150%; font-family: 'Times New Roman','serif'; font-size: 10.5pt; mso-bidi-font-weight: bold; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">C</span> <span style="line-height: 150%; font-family: 宋体; font-size: 10.5pt; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 11.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">、正立放大的实像</span> <span lang="EN-US" style="line-height: 150%; font-family: 'Times New Roman','serif'; font-size: 10.5pt; mso-bidi-font-weight: bold; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"> <span style="mso-spacerun: yes">               </span>D</span> <span style="line-height: 150%; font-family: 宋体; font-size: 10.5pt; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 11.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">、正立放大的虚像</span> <span lang="EN-US" style="line-height: 150%; font-family: 'Times New Roman','serif'; font-size: 10.5pt; mso-bidi-font-weight: bold; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"> <span style="mso-spacerun: yes">                     </span> </span> </p> <p> <span lang="EN-US" style="line-height: 150%; font-family: 'Times New Roman','serif'; font-size: 10.5pt; mso-bidi-font-weight: bold; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"> <span style="mso-spacerun: yes">...........</span> </span> </p>教科版不限试题试卷专供vip会员doc <img src="/images/nopic.gif" alt="%e6%95%99%e7%a7%91%e7%89%88%e5%85%ab%e5%b9%b4%e7%ba%a7%e7%89%a9%e7%90%86%e3%80%8a4.5%e7%a7%91%e5%ad%a6%e6%8e%a2%e7%a9%b6%ef%bc%9a%e5%87%b8%e9%80%8f%e9%95%9c%e6%88%90%e5%83%8f%e3%80%8b%e4%b9%a0%e9%a2%98%ef%bc%882%e4%bb%bd%ef%bc%89" border="0" /> /UploadFiles/sj/2017/8/201708240727371001.doc$$$下载地址2|sj/2017/8/201708240727393031.doc <script type="text/javascript" src="/cuplayer4/js/swfobject.js"></script> <div class="video" id="CuPlayer"><b><img src="/cuplayer4/images/loading.gif" /> 网页视频播放器加载中,请稍后...<a href="http://www.cuplayer.com/cuplayer" target="_blank">点此升级>></a></b></div> <script type="text/javascript"> var so = new SWFObject("/cuplayer4/player.swf","myCuPlayer","940","465","9","#000000"); 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so.addParam("allowfullscreen","true"); so.addParam("allowscriptaccess","always"); so.addParam("wmode","opaque"); so.addParam("quality","high"); so.addParam("salign","lt"); so.addVariable("CuPlayerFile","/UploadFiles/sj/2017/8/201708240727371001.doc$$$下载地址2|sj/2017/8/201708240727393031.doc"); //视频文件地址 so.addVariable("CuPlayerImage","");//视频缩略图 so.addVariable("CuPlayerShowImage","true"); so.addVariable("CuPlayerWidth","862"); so.addVariable("CuPlayerHeight","485"); so.addVariable("CuPlayerAutoPlay","false"); so.addVariable("CuPlayerAutoRepeat","true"); so.addVariable("CuPlayerShowControl","true"); so.addVariable("CuPlayerAutoHideControl","false"); so.addVariable("CuPlayerAutoHideTime","6"); so.addVariable("CuPlayerVolume","80"); so.addVariable("CuPlayerGetNext","false"); so.write("CuPlayer"); </script> <script language=javascript src="/cuplayer4/js/action.js" type=text/javascript></script> ] {PE.Field id="cone" fieldname="Title" /}-试卷中心-初中物理在线 {PE.Field id="cone" fieldname="gourl" /} {PE.Label id="顶部-试卷" currentId="{PE.Field id="cone" fieldname="NodeID" /}"/}

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