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小明和小红利用如图所示的装置探究“导体产生的热量与电阻大小的关系 ．质量相等的两瓶煤油中都浸泡着一段�属丝甲烧瓶中的�属丝是铜丝电阻比较小 Template






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tomski小明和小红利用如图所示的装置探究“导体产生的热量与电阻大小的关系 ．质量相等的两瓶煤油中都浸泡着一段�属丝甲烧瓶中的�属丝是铜丝电阻比较小 coloring
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小明和小红利用如图所示的装置探究“导体产生的热量与电阻大小的关系 ．质量相等的两瓶煤油中都浸泡着一段属丝甲烧瓶中的属丝是铜丝电阻比较小 sketch template
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小明和小红想利用如图所示的实验装置探究电流产生的热量与哪些因素有关的实验中两瓶煤油中都浸泡着一段属丝烧瓶甲中的属丝是镍铬合丝电阻 sketch template
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小明和小红想利用如图所示的装置探究“导体产生的热量与电阻大小的关系 ．两瓶煤油中都浸泡着一段属丝烧瓶A中的属丝是铜丝电阻比较小烧瓶B sketch template
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小明和小红利用如图所示的装置探究“导体产生的热量与电阻大小的关系 ．质量相等的两瓶煤油中都浸泡着一段属丝甲烧瓶中的属丝是铜丝电阻比较小 sketch template
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小明和小红想利用如图所示的装置探究“导体产生的热量与电阻大小的关系 两瓶煤油中都浸泡着一段属丝烧瓶A中的属丝是铜丝电阻比较小烧瓶B sketch template
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学完焦耳定律后小红和小亮想利用如图所示的装置比较铝和锰铜这两种材料的导电性能．1他们应该选用 都相同的铝丝和锰铜丝．2小红想在 sketch template
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如图旅游登山时蔓背囊中的物品有轻有重应该怎样放更学A把重的物品放在背囊下部B把重的物品放在背囊上部C从取拿方便考把常用的放 sketch template
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图16是“探究电流通过导体产生热量与导体电阻关系 的实验装置两阻值分别为R和2R的电阻丝浸在相同质量和相同初温的煤油中每一烧瓶里各插一支 sketch template
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在“比较不同物质吸热升温情况 的实验中1小红和小明做加热水和煤油的实验如图甲所示在组装器材时应先调节A的高度调节它的高度是为了确保 sketch template
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题目小明和小红利用如图所示的装置探究“电流通过导体产生的热量与电阻大小的关系 甲乙两烧瓶中装有质量相等的煤油甲烧瓶中的属丝是铜丝 sketch template
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小红利用如图所示的装置探究“液体内部压强的特点 ．1实验中所用的压强计不是连通器．2小明首先用手指按了按探头的橡皮膜现U型管内左右 sketch template
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小明等同学利用身边的器材进行实验探究．他们先在铁钉上套上薄料吸管然后在薄料吸管上缠绕细铁丝做成螺线管将这个装置固定在支架上如图所示 sketch template
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小明利用如图4所示的装置探究电流产生的热量与哪些因素有关在两个相同的烧瓶中装满煤油瓶中各放置一根电阻丝且R甲大于R乙通电一段时间后甲 sketch template
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小致同学用下列器材探究“液体内部压强的特点”。 （1）他图甲的U形管内注入适量的红墨水，红墨水静止时，U形管两侧液面高度（选填“相同”或“不 sketch template
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在学习液体压强时小明用三个矿泉水瓶和其他一些器材对液体压强的特点进行了研究．1如图甲所示小明在第一个矿泉水瓶上的AB两处开了两个大小 sketch template
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在探究电流通过导体产生的热量与哪些因素有关时把两段属丝AB已知AB两属丝的电阻分别为RARB且RA＞RB分别放在如图21所示 sketch template
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在探究“水沸腾前后温度变化的特点”实验中，用如图所示的装置进行实验，实验数据如表格所示。时间/min012345678温度/℃ sketch template
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题目山东省济南市天桥区2016届九年级下学期学业水平考试辽宁舰是军的第一艘航母训练舰为军积累了大量的实战经验辽宁舰上渗透了大量 sketch template
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题目小明和小亮用如图所示的装置探究凸透镜成像的规律1实验前将烛焰凸透镜和光屏的中心调至同一高度目的 2如图所示光屏上 sketch template
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为探究“通电导体产生热量的多与电阻的关系 小明设计了如图所示的实验电路．1其中甲乙两个相同的瓶内分别装有质量和初温都相同的煤油将 sketch template
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题目小明同学在探究影响浮力大小的因素时用A物体做了如图所示的实验请你根据小明的实验探究回答下列问题1在C与E两图中保持了排开 sketch template
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小明同学用如图所示的实验装置探究“电流通过导体产生的热量与电阻的关系 1实验中通过观察 来比较电流产生的热量的多2为了便于比较 sketch template
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18．小明利用如图12甲所示电路来探究通过导体的电流跟其两端电压及其电阻的关系 1在探究电流与电压的关系时应保持 不变分析表中的 sketch template
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题目小明用如图所示的电路来探究导体中的电流与导体电阻的关系．1请你用笔画线代替导线将图示电路连接完整 2闭合开关前动变阻器 sketch template
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小敏用如图甲所示的电路图研究通过导体的电流与导体电阻的关系电源电压恒为6V改变电阻R的阻值调节动变阻器片保持R两端的电压不变记 sketch template
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小亮在测量某种液体的密度时根据测量数据绘制出了烧杯和液体的总质量与液体体积的关系图象如图所示则液体的密度为08g/cm3． 题目和参考 sketch template
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小明等同学利用身边的器材进行实验探究．他们先在铁钉上套上薄料吸管然后在薄料吸管上缠绕细铁丝做成螺线管将这个装置固定在支架上如图所示 sketch template
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17．小明利用如图所示的装置探究电流产生的热量与哪些因素有关有两个相同的烧瓶中装 满煤油瓶中各放置一根电阻丝且R甲大于R乙通电一段时间 sketch template
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小明利用如图甲所示的实验研究浮力大小与深度的关系根据测得的实验数据作出了弹簧测力计的示数F与物体下表面在水中所处深度h 的关系图象根据 sketch template
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小明和小红想利用如图所示的装置探究“导体产生的热量与电阻大小的关系 ．两瓶煤油中都浸泡着一段长度粗细相同的属丝烧瓶A中的属丝是铜丝 sketch template