如图所示是小明同学测�轮组机械效率的实验装置图．他在2s内做了2．4j的有用功使重物匀速上升了0．4m不计绳重及�擦．请你回答 1弹簧 Sketch Coloring Page

如图所示是小明同学测�轮组机械效率的实验装置图．他在2s内做了2．4j的有用功使重物匀速上升了0．4m不计绳重及�擦．请你回答 1弹簧 Template

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tomski如图所示是小明同学测�轮组机械效率的实验装置图．他在2s内做了2．4j的有用功使重物匀速上升了0．4m不计绳重及�擦．请你回答 1弹簧 coloring

如图所示是小明同学测�轮组机械效率的实验装置图．他在2s内做了2．4J的有用功使重物匀速上升了0．4m不计绳重及�擦．请你回答 1弹簧 sketch template

小明测�轮组机械效率的实验过程如图14所示小明匀速拉动弹簧测力计时弹簧测力计的示数如图丁所示 1根据上面的实验数据计算该�轮组做的 sketch template

如图18所示是小明同学测�轮组机械效率的实验装置图他在2s内做了24J的有用功使重物匀速上升了04m不计绳重及�擦请你回答 1 sketch template

如图甲所示是小明“探究电流与电压、电阻的关系”的实验电路图。选用的实验器材是：电源3V、电流表（00 6A）、出卷� sketch template

小明在测量�轮组机械效率的实验中所用装置如图1所示实验中每个钩码重2N测得的数据如表物理量实验次数钩码总重G/N钩码上升的高度h/m sketch template

在“探究影响�轮组机械效率的因素”实验中，某同学用如图20所示的同一�轮组分别做了三次实验，实验数据记录如下： 实验次数钩码重/N 钩码上升 sketch template

题目如图所示是班上几个同学送小明乘火车回家时的情景示意图．当火车徐徐开动时小明坐在窗边却看到几个同学渐渐�后退去那么小明不可能 sketch template

小明利用如图所示的�轮组将重为900N的物体从一楼匀速提升到六楼所用的拉力为360N绳子自由端移动的速度为03m/s．求1小明所用 sketch template

小明在“测�轮组机械效率 的实验中用如图所示的�轮组进行了三次实验实验数据如下表 1分析表中数据回答以下问题 �表中有一个数据的 sketch template

在“探究影响�轮组机械效率的因素 的实验中小明同学利用图甲所示的�轮组进行了三次实验收集的数据如下表实验次数物重G/N物体上升高度h sketch template

如图所示在“测�轮组机械效率 实验中物体重为54N．1实验时要竖直�上且匀速匀速拉动弹簧测力计．若物体上升高度为10cm此时弹簧测 sketch template

如图所示是小明探究“影响浮力大小的因素”的实验过程及有关数据，已知ρ水=10×103kg/m3，g=10N/kg． 1由图�、�、�所示 sketch template

题目如图所示图甲是小明同学研究调光灯的实验电路图小灯泡规格是“6V3W 闭合开关S当�动变阻器�片P在A点时�动变阻器连入电路的 sketch template

如图所示小明同学用天平和量筒测�属块的密度1如图甲所示用调好的天平测�属块的质量则被测物体的质量是528g．2如图乙所示测 sketch template

如图所示是小明探究“物体的重力势能大小与物体的质量和被举起的高度是否有关 的活动所做三次实验的情景．1为探究“重力势能大小与物体被举起的 sketch template

30．如图所示用�轮组提起重G的物体绳子自由端拉力为F重物以速度勘匀速上升不计�擦和绳重则 1�轮组的机械效率为 2 sketch template

百度教育 sketch template

如图是小海同学“研究定�轮和动�轮特点 的实验装置．他按图示提起钩码时注意保持测力计匀速移动分别测得一组数据如下表所示 实验次数物重G/N sketch template

一轮复习：动态平衡问题解题技巧知乎 sketch template

如图所示是“测定�轮组机械效率 的装置实验过程中必须竖直�上拉动弹簧测力计使钩码升高小明同学做了3次实验第3次实验的拉力读数如图所示 sketch template

13．如图所示是自行车传动机构的示意图其中A是大齿轮B是小齿轮C是后车轮． �假设脚踏板的转速为nr/s半径为r0则大齿轮的角 sketch template

一轮复习：动态平衡问题解题技巧知乎 sketch template

一轮复习：阿特伍德机类型知乎 sketch template

题目在“观察水的沸腾 实验中 1如图所示是小明同学用温度计测小烧杯中水的初温时的操作图．A是操作过程B是读数过程C是读取的温度 sketch template

如图所示小明同学在“测�轮组机械效率 的实验中用10S的时间将重6N的物体匀速提升了03m所测拉力F为25N则有用功为 J�轮组的 sketch template

9． 在探究“物质的熔化特点”实验中，（1）如图甲所示，是小明根据实验数据作出的物质加热时温度随时间变化的图象．分析图象可知，知道该物质是 sketch template

如图所示小宇同学用一个距离手3m高的定�轮拉住100N的物体他手拉绳子从�轮正下方沿水平方�移动4m如图所示若不计绳重和�擦他至�做 sketch template

如图所示小华同学在“测�轮组机械效率 的实验中应竖直�上拉动绳子的自由端若钩码G重为3N小华所用拉力F为12N则�轮组的机械效率 sketch template

如图所示是小明同学探究电磁铁跟哪些因素有关的实验装置A是电磁铁B是弹簧C是铁块图示中的弹簧长度为15cm Ab两接线柱之间的线圈匝 sketch template

如图所示是小明同学探究电磁铁磁性强弱跟哪些因素有关的实验装置．1其中A是电磁铁C是弹簧B最好是��选填序号��料块 �小磁铁 � sketch template

如图是小明同学测量斜面机械效率的实验装置．实验时用弹簧测力计拉着重为8N的木块沿斜面�上做匀速直线运动弹簧测力计的示数如图所示．在这次实验中 sketch template

3．如图所示某校物理兴趣小组设计了一种“身高测量仪此装置可以测量人的身高．划片P可以在ab间移动R0为定值电阻．当闭合开关S后先给 sketch template

如图所示是某同学检查视力时的情景下列说法正确的是 A．镜中视力表的像是实像 B．镜中视力表的像比视力表小 C．镜中视力表的像到该 sketch template

如图所示小明同学在做俯卧�他的体重为500牛A点为重心．当他缓慢�起身体时地面对双手的作用力为300牛．在图中画出杠杆示意图．题目 sketch template

如图所示是小明同学探究电磁铁磁性强弱跟哪些因素有关的实验装置．1其中A是电磁铁C是弹簧B最好是��选填序号��料块 �小磁铁 � sketch template

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