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29．为了比较水和沙子吸热本领的大小小文做了如图16所示的实验在两个相同的烧杯中分别装有质量初温都相同的水和沙子用两个相同的酒精灯对 Template






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tomski29．为了比较水和沙子吸热本领的大小小文做了如图16所示的实验在两个相同的烧杯中分别装有质量初温都相同的水和沙子用两个相同的酒精灯对 coloring
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题目为了比较水和沙子的吸热能力小明用两个相同的装置做了如图所示的实验1在两烧杯中分别装入初温相同且 相等的沙子和水2用相同的 sketch template
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同学们在做“比较水和沙子的吸热能力 实验的场景如图所示．在实验中加热相同的时间目的是使水和沙子吸收相等的热量使水和沙子吸收相等的热量根据 sketch template
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为了比较水和沙子容热本领的大小小明做了如图所示的实验在2个相同的烧杯中分别装有质量初温都相同的水和沙子用两个相同的酒精灯对其加热实验 sketch template
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29．为了比较水和沙子吸热本领的大小小文做了如图16所示的实验在两个相同的烧杯中分别装有质量初温都相同的水和沙子用两个相同的酒精灯对 sketch template
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题目同学们在做“比较水和沙子的吸热能力 实验的场景如图所示他们说该实验有两种探究方法1实验方法一的设计如图中所示在实验中加热 sketch template
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做“影响物质吸热多的因素 实验加热相同质量的沙子和水比较二者的吸热能力实验原理如图甲所示1实验需用两个相同酒精灯加热为了记录 sketch template
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为了探究水和沙子的吸热能力小刚做了如图所示的实验用两个相同的酒精灯分别对水和沙子进行加热实验数据记录如表所示质量/g温度升高10℃所需 sketch template
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题目为了比较水和沙子吸热本领的大小小明在两个相同的烧杯中分别装入水和沙子用两个相同的酒精灯对其加热1在实验前要控制水和沙子的 和 sketch template
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题目某汽车在一段平直的公路上匀速行驶5．6受到的阻力是消耗燃油假设燃油完全燃烧若燃油的密度热值求1专用车牵引力所做的功 sketch template
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小华探究水和沙子的吸热能力实验器材如图所示用完全相同的铁架台石棉酒精灯属杯温度计各两个火柴一盒．实验中对质量相等的水和沙子 sketch template
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如图甲所示是“探究不同物质吸热升温现象 的实验．将质量相等的沙子和水分别装在易拉罐中并测出沙子和水的初温然后用酒精灯加热并不断搅拌每 sketch template
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小华在探究“不同物质的吸热能力”时，用相同的电加热器对质量均为1kg的水和另一种液体同时进行加热（不考热损失）。已知液体的比热容小于水的比热 sketch template
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某同学在做“探究物质吸热升温的属性 的实验装置如图所示．1此实验中沙子和水吸热的多是通过加热时间来反映的填“温度计示数 或“加热时间 sketch template
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为了比较水和食用油的吸热能力小明用两个相同的装置做了如下图所示的实验实验数据记录如下物质质量/g初始温度/℃加热时间/min最后温度/℃ sketch template
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夏天中午海边的沙子很热但海水却很凉傍晚海边的沙子凉海水却较暖和．对此同学们提出如下猜想可能是沙子吸热升温或放热降温都比水快．为了比较水 sketch template
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15．为了探究“不同物质吸热能力的大小 某同学用酒精灯同时给质量和初温都相等的沙子和水均匀加热装置如图所示．加热时间相同沙子和水吸收的 sketch template
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为了比较水和沙子容热本领的大小小明做了图所示的实验在2个相同的烧杯中分别装有质量初温都相同的水和沙子用两个相同的酒精灯对其加热实验 sketch template
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题目同学们在进行比较水和沙子的吸热能力的探究实验．1实验中需要测量水的质量．小范将天平放在水平台上将游码归零现指针指在分度盘 sketch template
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如图同学们在探究“比较水和沙子的吸热能力 ．他们准备用两个相同的属盒分别装初温相同的水和沙子下列关于此实验说法错误的是A本实验不能有效 sketch template
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在“比较不同物质吸热的情况”的实验中，实验装置如图所示。（1）实验中应量取（选填“质量”或“体积”）相同的甲、乙两种液体；（2）在本实验中 sketch template
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如图所示为了比较水和食用油的吸热能力某小组设计了如下实验步骤A在两个相同的烧杯中分别装入等体积的水和食用油B用两支相同规格的温度 sketch template
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如图所示为研究物质比热容的实验装置两个相同的烧杯中分别盛有质量相等初温相同的水和煤油用两个相同的“热得快 对其加热实验时为比较水和煤油 sketch template
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在“比较不同物质吸热升温情况 的实验1实验中要求的水和煤油的质量和初温相等分别加热相同的时间比较水和煤油温度变化得出结论．要完成该 sketch template
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为了比较水和食用油的吸热能力小明用两个相同的装置做了如下图所示的实验实验数据记录如下物质质量/g初始温度/℃加热时间/min最后温度/℃ sketch template
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物理学习过程中下列估测合理的是 A．人自行车正常行驶的速度约为80m/sB．成年人站立时对地面的压强为约15×104PaC．洗热水澡 sketch template
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某小组的同学做“比较不同物质的吸热能力 的实验他们使用了如图所示的装置1在设计实验方案时需要确定以下控制的变量你认为其中多余的是 sketch template
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在一个标准大气压下质量为1kg初温为80℃的水吸收126×105J热量后其温度升高到多若这些热量被5kg的铜块吸收则铜块升高的 sketch template
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为了比较水和食用油的吸热能力小明用两个相同的装置做了如下图所示的实验实验数据记录如下物质质量/g初始温度/℃加热时间/min最后温度/℃ sketch template
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为了比较水和食用油的吸热能力小明用两个相同的装置做了如右图所示的实验．实验数据记录如下表．物质质量/g初始温度/℃加热时间/min最后温度 sketch template
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题目为了比较豆浆和牛奶的吸热能力小刚在家中进行了如下的实验1如图甲所示他分别在两个瓶子里盛 相同的初温都是室温的豆浆和牛奶两 sketch template
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题目为了比较水和沙子吸热本领的大小小文做了如图所示的实验在两个相同的烧杯中分别装有质量初温都相同的水和沙子用两个相同的酒精灯对其 sketch template
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安全清洁方便的太阳能越来越受到人们的重视和广泛利用．如图所示一太阳能热水器内装有质量为200kg温度为20℃的水在阳光照射一段时间后 sketch template
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为了比较水和煤油的吸热能力小明做了如图所示的实验1A在两个相同的烧杯中分别装入等体积的水和煤油B用两支温度计分别测出水和煤油的 sketch template
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为了比较水和煤油的吸热能力小王作了如图所示的实验在2个相同的烧杯中分别装有质量初温都相同的水和煤油用两个相同的酒精灯对其加热并用相同 sketch template
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题目为了比较 AB 两种液体比热容的大小某实验小组做了如图所示的实验在两个完全相同的烧杯中分别装入 AB两种液体用完全相同的 sketch template