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学习了光学知识后小明对有关实验进行了思考和创新1用如图甲所示的装置研究光的反射规律其中有一个可沿虚线折转的光屏．�光屏在实验中的作用 Template






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tomski学习了光学知识后小明对有关实验进行了思考和创新1用如图甲所示的装置研究光的反射规律其中有一个可沿虚线折转的光屏．�光屏在实验中的作用 coloring
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学习了光学知识后小明对有关实验进行了思考和创新1用如图甲所示的装置研究光的反射规律其中有一个可沿虚线折转的光屏．光屏在实验中的作用 sketch template
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光学知识学习（1） 知乎 sketch template
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学习了光学知识后爱动筋的小李和小想自己探究小孔成像现象．如图1所示他们给两个空罐的底部中央分别打上一个圆孔和一个方孔再用两片半透明的 sketch template
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题目如图所示学习光学知识后小聪对有关实验进行了思考和创新．1在探究“平面镜成像的特点 实验中使用透明或玻璃板而不是用平面镜的目的 sketch template
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在“探究凸透镜成像的规律 实验中小安进行了以下的实验步骤1让凸透镜正对着太阳在其下方调节光屏的位置直至光屏上出现一个最小最亮的光 sketch template
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学习了光学知识后爱动筋的小桐和小朵想自己探究小孔成像观象．如图所示她们给两个空罐的底部中央分别打上一个圆孔和一个方孔再用两片半透明的 sketch template
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学习了光学知识后小华想探究小孔成像现象．如图甲所示她给两个空罐的底部中央分别打上一个圆孔和一个方孔再用两片半透明的料膜蒙在空罐的口上 sketch template
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小明同学在“绿叶在光下制造淀粉 的实验中现一些问题请帮他解决．1在本实验中提出的问题是 ．2将叶片的一部分用不透光的纸片遮盖起来的 sketch template
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实验详情 sketch template
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学习了光学知识后，爱动筋的小桐和小朵想自己探究小孔成像观象。如图 sketch template
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题目七年级探究性学习小组的同学在学习了相关知识后利用课余时间用银边天竺作实验材料对“绿色植物进行光合作用 实验作了进一步探究．请 sketch template
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学习了光学知识后爱动筋的小桐和小朵想自己探究小孔成像观象如图所示她们给两个空罐的底部中央分别打上一个圆孔和一个方孔再用两片半透明的 sketch template
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学习了光学知识后爱动筋的小桐和小朵想自己探究小孔成像观象．如图所示她们给两个空罐的底部中央分别打上一个圆孔和一个方孔再用两片半透明的 sketch template
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七年级探究性学习小组的同学在学习了相关知识后利用课余时间用银边天竺作实验材料对“绿色植物进行光合作用 实验作了进一步探究．请根据以下 sketch template
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七年级探究性学习组的同学在学习了相关知识后利用课余时间用银边天竺作实验材料对“绿色植物进行光合作用 实验作了进一步探究．请根据以下图示 sketch template
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学习了光学知识后爱动筋的小桐和小朵想自己探究小孔成像现象．如图所示她们给两个空罐的底部中央分别打上一个圆孔和一个方孔再用两片半透明的 sketch template
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小明学习了光学知识后利用放大镜观察围的物体如图所示他首先观察自己的手指然后有利用放大镜观察窗外远处的物体下列说法正确的是 A sketch template
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在学习了本节内容后小明同学做了一个实验来验证力的三要素对力的作用效果的影响他将一薄钢条的上端固定分别用力去拉它使其生图中四种形变 sketch template
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题目学习了电学知识后小明对影响电阻大小的部分因素进行了探究器材有开关电流表干电池各一个三根完全相同的合丝导线若干连接如图 sketch template
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学习了有关物理知识后小明同学设计了一个免费游世界的方案他把方案画成了图7 4他的方案能实现吗为什么——青夏教育精英家教—— sketch template
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小明学习了密度知识后想利用天平和量筒测量家中一祖传属块的密度．但苦于家中没有天平和量筒于是他做了如下实验先用电子称测出一个空玻璃瓶的 sketch template
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小林学习了密度知识后和同学们一起到实验室动手测出了一个属球的密度以下是他测量密度的实验步骤 1在调节托盘天平平衡时现指针的未知如 sketch template
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学习了有关物理知识后小明同学设计了一个免费游世界的方案他把方案画成了图．他的方案能实现吗为什么 题目和参考答案——青夏教育精英家教—— sketch template
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26．在学习了质量守恒定律后小明和小华来到实验室他们用右下图所示的实验装置验证了氢氧化钠溶液和硫酸铜溶液反应是符合质量守恒定律的 1 sketch template
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在学习了质量守恒定律后小明和小华来到实验室他们用如图所示的实验装置验证了氢氧化钠溶液和硫酸铜溶液反应是符合质量守恒定律的．1请写出该 sketch template
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题目小明同学学习了植物的光合作用后为了研究不同株距对玉米产量的影响设计了一个趣实验将生长状况相似的玉米苗按不同株距分别播种在田间 sketch template
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在学习了质量守恒定律后小明和小华来到实验室他们用如图所示的实验装置验证了氢氧化钠溶液和硫酸铜溶液反应是符合质量守恒定律的．1请写出该 sketch template
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学习了有关物理知识后小明同学设计了一个免费游世界的方案他把方案画成了图7 4他的方案能实现吗为什么——青夏教育精英家教—— sketch template
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学习了光学知识后爱动筋的小桐和小朵想自己探究小孔成像现象．如图所示她们给两个空罐的底部中央分别打上一个圆孔和一个方孔再用两片半透明的 sketch template
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学习了浮力的知识后小明对潜水艇的浮沉原理产生了很大的兴趣．1如图甲小明用料瓶透明胶带螺 母料管容器和水等制作了一只潜水艇 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根据A 与 E 两图所标的实验数据 sketch template
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小明在学完密度知识后利用实验室的器材测量了合块的密度1调节天平平衡后现分度盘上的指针如图甲所示则小明应该将平衡螺母左左调节 sketch template
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小明学习了燃料的热值知识后自己设计了一个实验来比较煤油和菜子油的热值．他实验时组装了如图的装置并且每隔l分钟记录了杯中水的温度．为了保证 sketch template
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小强小明和小梅三人在学习了木炭还原氧化铜的实验后查阅了有关资料知道木炭在较高温度的条件下也能与一氧化铅PbO反应生成属铅他们提出 sketch template
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学习了密度计知识后小明同学在一支铅笔的下端粘上一块橡皮泥制成一个简易密度计然后把它分别放入甲乙两杯液体中静止时如图所示．则该密度计在甲 sketch template