[err:数据源标签'PE.DataSource id="cone" datasource="资料_内容页" itemId="122618" 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 0xA0)。 行 17,位置 646。,源码:1226183 <meta http-equiv="refresh" content="0;url=/Item/122618.aspx?wu=1" /> 169湖南省永州市2018-2019学年八年级上学期期末义务教育学业质量监测物理试题及答案1021.44KB1021.44Bdocxczwlzx张文丽 邓磊 黄才军czwlzx/UploadFiles/UserPic/UserAvatars/15219_150_150.jpg <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?id=122618"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?hitstype=dayhits&id=122618"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?hitstype=weekhits&id=122618"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?hitstype=monthhits&id=122618"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetBrowseTimes.aspx?id=122618"></script> <img src="/images/star5.jpg" /> 张文丽 邓磊 黄才军1永州市,2018-2019学年八年级上学期期末义务教育学业质量监测物理试题,天津市部分区(蓟州区)2020年01月21日/UploadFiles/nopic.gif 命题人:张文丽(永州九中)  邓磊(江华阳华中学)  黄才军(蓝山一中)审题人:邓文远(永州市教科院)命题人:张文丽(永州九中)  邓磊(江华阳华中学)  黄才军(蓝山一中)审题人:邓文远(永州市教科院)温馨提示:1.本试卷包括试题卷和答题卡。考生作答时,选择题和非选择题均须作答在答题卡上,在本试题卷上作答无效。考生在答题卡上按答题卡中注意事项的要求答题。2.考试结束后,将本试题卷和答题卡一并交回。3.本试卷满分100分,考试时间90分钟。本试卷共四道大题,35小题。如有缺页,考生须声明。亲爱的同学,请你沉着应考,细心审题,揣摩题意,应用技巧,准确作答。祝你成功! 一、选择题(本大题共16个小题,每小题只有一个正确选项,请将正确选项填涂到答题卡上。每小题2分,共32分)1.下列估测值比较接近实际的是A.永州各县 【内容简介】命题人:张文丽(永州九中)  邓磊(江华阳华中学)  黄才军(蓝山一中)审题人:邓文远(永州市教科院)温馨提示:1.本试卷包括试题卷和答题卡。考生作答时,选择题和非选择题均须作答在答题卡上,在本试题卷上作答无效。考生在答题卡上按答题卡中注意事项的要求答题。2.考试结束后,将本试题卷和答题卡一并交回。3.本试卷满分100分,考试时间90分钟。本试卷共四道大题,35小题。如有缺页,考生须声明。亲爱的同学,请你沉着应考,细心审题,揣摩题意,应用技巧,准确作答。祝你成功! 一、选择题(本大题共16个小题,每小题只有一个正确选项,请将正确选项填涂到答题卡上。每小题2分,共32分)1.下列估测值比较接近实际的是A.永州各县区的大气压值约为1×105PaB.人站立时脚对地面的压强约为100PaC.游泳运动员在水中游泳时所受浮力约为2000ND.一个鸡蛋的重力约为5N2.在下列事例中,物体处于平衡状态的是[来源:学.科.网Z.X.X.K]A.减速着陆的宇宙飞船                                 B.在公路上匀速直线行驶的汽车C.腾空而起正在加速上升的火箭                   D.正在圆形轨道上运动的过山车3.如图所示,用两食指同时压铅笔两端使铅笔处于水平静止状态,左手指受到的压力为F1,压强为p1;右手指受到的压力为F2,压强为p2。下列大小关系正确的是A.F1>F2                    B.F1p2                            D.p1pA             B.pC=pB pB > pC            D.pC >pB > pA 5.如图所示为我国已制造出的世界上最快的高速列车“复兴号”,运行时速度可达380km/h。为避免候车乘客被“吸”向火车的事故发生,站台上的安全线与列车要保持较大的距离。这是因为列车进站时车体附近A.空气流速大、压强大                                 B.空气流速小、压强大     C.空气流速大、压强小                                 D.空气流速小、压强小6.以下几种现象中,没有利用惯性的是A.锤头松了,将锤柄在地上撞击几下            B.用手拍去衣服上的尘土C.运动员采用助跑跳远                                 D.橡皮泥受到手的挤压会发生形变7.某同学在学校实验室做托里拆利实验,测得玻璃管内外水银面高度差为76cm,采取下列哪项措施可以改变这个高度差A.把玻璃管往上提一提(管口不出水银面)B.把实验移到高山上去做C.往水银槽内加少量水银D.实验时,换用更粗的玻璃管进行实验命题人:张文丽(永州九中)&#160; 邓磊(江华阳华中学)&#160; 黄才军(蓝山一中)审题人:邓文远(永州市教科院)温馨提示:1.本试卷包括试题卷和答题卡。考 <p><em>所属专辑:</em> <a href='/Special_197/Index.aspx' target='_blank'> 各地2019-2020学年八年级上学期期末考试物理试题汇总 </a> </p> 下载地址1|sj/2020/1/202012194329.docx<p style="margin-top:5px;text-indent: 42px"><span style=";line-height:115%;font-family:楷体_GB2312">命题人:张文丽(永州九中)</span><span style=";line-height:115%;font-family:楷体_GB2312">  </span><span style=";line-height:115%;font-family:楷体_GB2312">邓磊(江华阳华中学)</span><span style=";line-height:115%;font-family:楷体_GB2312">  </span><span style=";line-height:115%;font-family:楷体_GB2312">黄才军(蓝山一中)</span></p><p style="margin-bottom:5px;text-indent:42px"><span style=";line-height:115%;font-family:楷体_GB2312">审题人:邓文远(永州市教科院)</span></p><p style="line-height:22px"><span style=";font-family:黑体">温馨提示:</span></p><p style="margin-left:49px;line-height:22px">1<span style=";font-family:楷体_GB2312">.本试卷包括试题卷和答题卡。考生作答时,选择题和非选择题均须作答在答题卡上,在本试题卷上作答无效。考生在答题卡上按答题卡中注意事项的要求答题。</span></p><p style="text-indent:28px;line-height:22px">2<span style=";font-family:楷体_GB2312">.考试结束后,将本试题卷和答题卡一并交回。</span></p><p style="margin-left:49px;line-height:22px">3<span style=";font-family:楷体_GB2312">.本试卷满分</span>100<span style=";font-family:楷体_GB2312">分,考试时间</span>90<span style=";font-family:楷体_GB2312">分钟。本试卷共四道大题,</span>35<span style=";font-family:楷体_GB2312">小题。如有缺页,考生须声明。</span></p><p style="margin-left:49px;line-height:22px"><span style=";font-family:黑体">亲爱的同学,请你沉着应考,细心审题,揣摩题意,应用技巧,准确作答。祝你成功!</span></p><p style="margin-left:28px;line-height:22px"> </p><p style="margin-left:19px;line-height:110%"><span style=";line-height: 110%;font-family:黑体">一、</span><span style=";line-height:110%;font-family:黑体"><img width="2" height="2" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="说明: 学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";line-height:110%;font-family:黑体">选择题</span><span style=";line-height:110%;font-family:宋体">(本大题共</span><span style=";line-height:110%">16</span><span style=";line-height:110%;font-family:宋体">个小题,每小题只有一个正确选项,请将正确选项填涂到答题卡上。每小题</span><span style=";line-height:110%">2</span><span style=";line-height:110%;font-family:宋体">分,共</span><span style=";line-height:110%">32</span><span style=";line-height: 110%;font-family:宋体">分)</span></p><p style="line-height:110%"><span style=";line-height:110%">1</span><span style=";line-height:110%;font-family:宋体">.</span><span style=";line-height:110%;font-family:宋体">下列估测值比较接近实际的是</span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%">A</span><span style=";line-height:110%;font-family:宋体">.永州各县区的大气压值约为</span><span style=";line-height:110%">1×10<sup>5</sup>Pa</span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%">B</span><span style=";line-height:110%;font-family:宋体">.人站立时脚对地面的压强约为</span><span style=";line-height:110%">100Pa</span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%">C</span><span style=";line-height:110%;font-family:宋体">.游泳运动员在水中游泳时所受浮力约为</span><span style=";line-height:110%">2000N</span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%">D</span><span style=";line-height:110%;font-family:宋体">.一个鸡蛋的重力约为</span><span style=";line-height:110%">5N</span></p><p style="line-height:110%"><span style=";line-height:110%">2</span><span style=";line-height:110%;font-family:宋体">.</span><span style=";line-height:110%;font-family:宋体">在下列事例中,物体处于平衡状态的是</span><span style="font-size:3px;line-height:110%;color:white">[</span><span style="font-size:3px;line-height:110%;font-family: 宋体;color:white">来源</span><span style="font-size:3px;line-height:110%;color:white">:</span><span style="font-size:3px;line-height:110%;font-family:宋体;color:white">学</span><span style="font-size:3px;line-height:110%;color:white">.</span><span style="font-size:3px;line-height:110%;font-family:宋体;color:white">科</span><span style="font-size:3px;line-height:110%;color:white">.</span><span style="font-size:3px;line-height:110%;font-family: 宋体;color:white">网</span><span style="font-size:3px;line-height:110%;color:white">Z.X.X.K]</span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%">A</span><span style=";line-height:110%;font-family:宋体">.减速着陆的宇宙飞船</span><span style=";line-height:110%">                                 B</span><span style=";line-height:110%;font-family:宋体">.在公路上匀速直线行驶的汽车</span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%">C</span><span style=";line-height:110%;font-family:宋体">.腾空而起正在加速上升的火箭</span><span style=";line-height:110%">                   D</span><span style=";line-height:110%;font-family:宋体">.正在圆形轨道上运动的过山车</span><span style=";line-height:110%"><img width="2" height="2" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="说明: 学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span></p><p style="margin-left:28px;line-height:110%"><span style=";line-height:110%">3</span><span style=";line-height:110%;font-family:宋体">.</span><span style=";line-height:110%;font-family:宋体">如图所示,用两食指同时压铅笔两端使铅笔处于水平静止状态,左手指受到的压力为</span><em><span style=";line-height:110%">F</span></em><sub><span style=";line-height:110%">1</span></sub><span style=";line-height:110%;font-family:宋体">,压强为</span><em><span style=";line-height:110%">p</span></em><sub><span style=";line-height:110%">1</span></sub><span style=";line-height:110%;font-family:宋体">;右手</span><span style=";line-height: 110%"><img width="2" height="2" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="说明: 学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";line-height:110%;font-family:宋体">指受到的压力为</span><em><span style=";line-height:110%">F</span></em><sub><span style=";line-height:110%">2</span></sub><span style=";line-height:110%;font-family:宋体">,压强为</span><em><span style=";line-height:110%">p</span></em><sub><span style=";line-height:110%">2</span></sub><span style=";line-height:110%;font-family:宋体">。下列大小关系正确的是</span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%">A</span><span style=";line-height:110%;font-family:宋体">.</span><em><span style=";line-height:110%">F</span></em><sub><span style=";line-height:110%">1</span></sub><span style=";line-height:110%">&gt;<em>F</em><sub>2</sub>                    B</span><span style=";line-height:110%;font-family:宋体">.</span><em><span style=";line-height:110%">F</span></em><sub><span style=";line-height:110%">1</span></sub><span style=";line-height:110%">&lt;<em>F</em><sub>2</sub>                    C</span><span style=";line-height:110%;font-family:宋体">.</span><em><span style=";line-height:110%"><img width="2" height="2" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="说明: 学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span></em><em><span style=";line-height:110%">p</span></em><sub><span style=";line-height:110%">1</span></sub><span style=";line-height:110%">&gt;<em>p</em><sub>2</sub>                            D</span><span style=";line-height:110%;font-family:宋体">.</span><em><span style=";line-height:110%">p</span></em><sub><span style=";line-height:110%">1</span></sub><span style=";line-height:110%">&lt;<em>p</em><sub>2</sub></span></p><p style="text-indent:28px;line-height:110%"><br /></p><table><tbody><tr class="firstRow"><td width="21"><br /></td><td width="107"><br /></td><td width="63"><br /></td><td width="122"><br /></td><td width="55"><br /></td><td width="150"><br /></td></tr><tr><td><br /></td><td colspan="2"><br /></td><td rowspan="5" valign="top"><img width="122" height="101" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="说明: 学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></td><td rowspan="1" valign="top"><br /></td><td rowspan="1" valign="top"><br /></td></tr><tr><td><br /></td><td rowspan="3" valign="top"><img width="107" height="85" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="说明: 学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></td><td rowspan="1" valign="top"><br /></td><td rowspan="1" valign="top"><br /></td><td rowspan="1" valign="top"><br /></td></tr><tr><td><br /></td><td><br /></td><td><br /></td><td valign="top"><img width="150" height="81" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="说明: 学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/lang/zh-cn/images/localimage.png) no-repeat center center;border:1px solid #ddd" /></td></tr><tr><td><br /></td><td><br /></td><td><br /></td><td><br /></td></tr><tr><td><br /></td><td><br /></td><td><br /></td><td><br /></td><td><br /></td></tr></tbody></table><p><span style=";line-height: 110%"> </span></p><p><br /></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%"> </span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%"> </span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%"> </span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%"> </span></p><p><br /></p><p style="text-indent:36px;line-height:110%"><span style="font-size:12px;line-height:110%;font-family: 楷体_GB2312">(第</span><span style="font-size:12px;line-height:110%">3</span><span style="font-size:12px;line-height:110%;font-family:楷体_GB2312">题图)</span><span style="font-size:12px;line-height:110%">                 </span><span style="font-size: 12px;line-height:110%;font-family:楷体_GB2312">(第</span><span style="font-size:12px;line-height:110%">4</span><span style="font-size:12px;line-height:110%;font-family:楷体_GB2312">题图)</span><span style="font-size:12px;line-height:110%">                    </span><span style="font-size:12px;line-height:110%;font-family:楷体_GB2312">(第</span><span style="font-size:12px;line-height:110%">5</span><span style="font-size:12px;line-height:110%;font-family:楷体_GB2312">题图)</span></p><p style="margin-left:28px">4<span style=";font-family:宋体">.</span><span style=";font-family:宋体">如图所示,静止于水平桌面的甲、乙两个容器里分别装有酒精和水</span><span style=";font-family:宋体">(</span><span style=";position:relative;top:8px"><img width="31" height="21" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";font-family: 宋体"><</span><span style=";position:relative;top:8px"><img width="21" height="21" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";font-family: 宋体">),且液面相平,图中</span><em>A</em><span style=";font-family:宋体">、</span><em>B</em><span style=";font-family:宋体">、</span><em>C</em><span style=";font-family:宋体">三点受到的液体压强分别为</span><em>p</em><em><sub><span style="font-size:12px">A</span></sub></em><span style=";font-family:宋体">、</span><em>p</em><em><sub><span style="font-size:12px">B</span></sub></em><span style=";font-family:宋体">、</span><em>p</em><em><sub><span style="font-size:12px">C</span></sub></em><span style=";font-family:宋体">。</span><span style=";font-family:宋体">下列判断正确的是</span></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%">A</span><span style=";line-height:110%;font-family:宋体">.</span><em><span style=";line-height:110%">p</span></em><em><sub><span style="font-size:12px;line-height:110%">C</span></sub></em><span style=";line-height:110%"> =<em>p</em></span><em><sub><span style="font-size:12px;line-height:110%">B</span></sub></em><span style=";line-height:110%"> &gt;<em>p</em></span><em><sub><span style="font-size:12px;line-height:110%">A</span></sub></em><span style=";line-height:110%">             B</span><span style=";line-height:110%;font-family:宋体">.</span><em><span style=";line-height:110%">p</span></em><em><sub><span style="font-size:12px;line-height:110%">C</span></sub></em><em></em><span style=";line-height:110%">=<em>p</em></span><em><sub><span style="font-size:12px;line-height:110%">B</span></sub></em><span style=";line-height:110%"> &lt;<em>p</em></span><em><sub><span style="font-size:12px;line-height:110%">A</span></sub></em><span style=";line-height:110%">                     C</span><span style=";line-height:110%;font-family:宋体">.</span><em><span style=";line-height:110%">p</span></em><em><sub><span style="font-size:12px;line-height:110%">A</span></sub></em><em></em><span style=";line-height:110%">&gt;<em> p</em></span><em><sub><span style="font-size:12px;line-height:110%">B</span></sub></em><span style=";line-height:110%"> &gt; <em>p</em></span><em><sub><span style="font-size:12px;line-height:110%">C</span></sub></em><span style=";line-height:110%">            D</span><span style=";line-height:110%"><img width="2" height="2" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="说明: 学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";line-height:110%;font-family:宋体">.</span><em><span style=";line-height:110%">p</span></em><em><sub><span style="font-size:12px;line-height:110%">C</span></sub></em><span style=";line-height:110%"> &gt;<em>p</em></span><em><sub><span style="font-size:12px;line-height:110%">B</span></sub></em><span style=";line-height:110%"> &gt; <em>p</em></span><em><sub><span style="font-size:12px;line-height:110%">A</span></sub></em></p><p style="text-indent:28px;line-height:110%"><span style=";line-height: 110%"> </span></p><p style="margin-left:28px;line-height:107%"><span style=";line-height:107%">5</span><span style=";line-height:107%;font-family:宋体">.</span><span style=";line-height:107%;font-family:宋体">如图所示为我国已制造出的世界上最快的高速列车“复兴号”,运行时速度可达</span><span style=";line-height:107%">380km/h</span><span style=";line-height:107%;font-family:宋体">。为避免候车乘客被</span><span style=";line-height:107%">“</span><span style=";line-height:107%;font-family:宋体">吸</span><span style=";line-height:107%">”</span><span style=";line-height:107%;font-family:宋体">向火车的事故发生,站台上的安全线与列车要保持较大的距离。这是因</span><span style=";line-height:107%"><img width="2" height="2" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="说明: 学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";line-height:107%;font-family:宋体">为列车进站时车体附近</span></p><p style="text-indent:28px;line-height:107%"><span style=";line-height: 107%">A</span><span style=";line-height:107%;font-family:宋体">.空气流速大、压强大</span><span style=";line-height:107%">                                 B</span><span style=";line-height:107%;font-family:宋体">.空气流速小、压强大</span><span style=";line-height:107%">     </span></p><p style="text-indent:28px;line-height:107%"><span style=";line-height: 107%">C</span><span style=";line-height:107%;font-family:宋体">.空气流速大、压强小</span><span style=";line-height:107%">                                 D</span><span style=";line-height:107%;font-family:宋体">.空气流速小、压强小</span></p><p style="line-height:107%"><span style=";line-height:107%">6</span><span style=";line-height:107%;font-family:宋体">.</span><span style="line-height: 107%;font-family: 宋体">以下几种现象中,没有利用惯</span><span style="line-height: 107%"><img width="2" height="2" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="说明: 学科网(www.zxxk.com)--教育资源门户,提供试卷、教案、课件、论文、素材及各类教学资源下载,还有大量而丰富的教学相关资讯!" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style="line-height: 107%;font-family: 宋体">性的是</span></p><p style="text-indent:28px;line-height:107%"><span style=";line-height: 107%">A</span><span style=";line-height:107%;font-family:宋体">.锤头松了,将锤柄在地上撞击几下</span><span style=";line-height:107%">            B</span><span style=";line-height:107%;font-family:宋体">.用手拍去衣服上的尘土</span><span style=";line-height:107%"></span></p><p style="text-indent:28px;line-height:107%"><span style=";line-height: 107%">C</span><span style=";line-height:107%;font-family:宋体">.运动员采用助跑跳远</span><span style=";line-height:107%">                                 D</span><span style=";line-height:107%;font-family:宋体">.橡皮泥受到手的挤压会发生形变</span><span style=";line-height:107%"></span></p><p style="margin-left:28px;line-height:107%"><span style=";line-height:107%">7</span><span style=";line-height:107%;font-family:宋体">.</span><span style=";line-height:107%;font-family:宋体">某同学在学校实验室做托里拆利实验,测得玻璃管内外水银面高度差为</span><span style=";line-height:107%">76cm</span><span style=";line-height:107%;font-family:宋体">,采取下列哪项措施可以改变这个高度差</span></p><p style="text-indent:28px;line-height:107%"><span style=";line-height: 107%">A</span><span style=";line-height:107%;font-family:宋体">.把玻璃管往上提一提(管口不出水银面)</span></p><p style="text-indent:28px;line-height:107%"><span style=";line-height: 107%">B</span><span style=";line-height:107%;font-family:宋体">.把实验移到高山上去做</span></p><p style="text-indent:28px;line-height:107%"><span style=";line-height: 107%">C</span><span style=";line-height:107%;font-family:宋体">.往水银槽内加少量水银</span></p><p style="text-indent:28px;line-height:107%"><span style=";line-height: 107%">D</span><span style=";line-height:107%;font-family:宋体">.实验时,换用更粗的玻璃管进行实验</span><span style=";line-height:107%"></span></p><p><br /></p>人教版湖南试题试卷专供vip会员docx <img src="/images/nopic.gif" 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