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第1部分专题7第18讲 热学和光学实验_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)

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第1部分专题7第18讲 热学和光学实验_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)
第1部分专题7第18讲 热学和光学实验_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)
第1部分专题7第18讲 热学和光学实验_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)
第1部分专题7第18讲 热学和光学实验_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)

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第 18 讲 热学和光学实验 1.(2022·广东省模拟)某实验小组在做“用油膜法估测油酸分子的大小”的实验时,用注射 器将一滴油酸酒精溶液滴入盛水的浅盘里,把玻璃板放在浅盘上并描画出油膜的轮廓. (1)该小组进行下列实验操作,请将它们按操作先后排序:________(用字母符号表示). (2)某同学在做该实验时,计算结果明显偏大,其原因可能是________. A.计算油膜面积时所有不足一格的方格全部按满格计数 B.用注射器测得1 mL溶液有N滴时数成了N-1滴 C.痱子粉末太薄使油酸边界不清,导致油膜面积测量值偏大 D.未等痱子粉末完全散开,就在玻璃片上描绘了油膜轮廓 (3)在本实验中,做了几点理想化假设,请写出任意两条___________________________ ___________________________________________________________________________. 2.某同学利用“插针法”测定玻璃的折射率,所用的玻璃砖两面平行.正确操作后,作出 的光路图及测出的相关角度如图甲所示. (1)此玻璃的折射率计算式为n=________(用图中的θ、θ 表示). 1 2 (2)如果有几块宽度大小不同的平行玻璃砖可供选择,为了减小误差,应选用宽度 ________(填“大”或“小”)的玻璃砖来测量. (3)若该同学用他测得的多组入射角i与折射角r,作出sin i-sin r的图像如图乙所示,下列 判断不正确的是________. A.他做实验时,研究的是光线从空气射入玻璃的折射现象 B.玻璃的折射率为0.67 C.玻璃的折射率为1.49 3.(2022·上海市模拟)如图甲是“用DIS研究在温度不变时,一定质量的气体压强与体积的 关系”的实验装置.主要步骤如下:①将压强传感器调零; ②在活塞上均匀涂抹润滑油,把活塞移至注射器满刻度处; ③逐一连接注射器、压强传感器、数据采集器、计算机; ④推动活塞,记录多组注射器内气体的体积 V,以及相应的压强传感器示数 p. (1)实验操作中,活塞上均匀涂抹润滑油,主要目的是________________. (2)为了保持封闭气体的温度恒定,下列措施可行的是________. A.注射器必须固定在竖直平面内 B.用手握注射器推拉活塞 C.缓慢推动活塞 (3)测得多组空气柱的压强 p 和体积 V 的数据后,为直观反映压强与体积之间的关系,若 以p 为纵坐标,则应以________为横坐标在坐标系中描点作图;小明所在的小组不断压缩 气体,由测得数据发现图线的上端出现了一小段弯曲,产生这一现象的可能原因是 __________(答一种即可). (4)另一小组实验时缓慢推动活塞,记录4组注射器上的刻度数值V,以及相应的压强传感器 示数p.在采集第5组数据时,压强传感器的软管脱落,重新接上后继续实验,又采集了4组 数据,其余操作无误.该小组绘出的V-关系图像应是________. 4.(2022·江苏泰兴市第一高级中学期末)在“用双缝干涉实验测量光的波长”实验中,将双 缝干涉实验仪按要求安装在光具座上(如图甲),并选用缝间距为d的双缝屏.从仪器注明的 规格可知,毛玻璃屏与双缝屏间的距离为L,接通电源使光源正常工作,发出白光. (1)组装仪器时,若将单缝和双缝均沿竖直方向分别固定在a处和b处,则________. A.可观察到水平方向的干涉条纹B.可观察到竖直方向的干涉条纹 C.看不到干涉现象 (2)若取下红色滤光片,其他实验条件不变,则在目镜中________. A.观察不到干涉条纹 B.可观察到明暗相间的白条纹 C.可观察到彩色条纹 (3)若想增加从目镜中观察到的条纹个数,该同学可________. A.将单缝向双缝靠近 B.将屏向靠近双缝的方向移动 C.将屏向远离双缝的方向移动 D.使用间距更小的双缝 (4)若实验中在像屏上得到的干涉图样如图乙所示,毛玻璃屏上的分划板刻线在图乙中A、B 位置时,游标尺的读数分别为x 、x ,则入射的单色光波长的计算表达式为λ=________.分 1 2 划板刻线在某条亮条纹位置时游标卡尺如图丙所示,则其读数为________ mm. 5.(2022·浙江温州市二模)在“测玻璃的折射率”实验中: (1)小朱同学在实验桌上看到方木板上有一张白纸,白纸上有如图甲所示的实验器材,他认 为除了量角器外还缺少一种器材,请你写出所缺器材的名称:________________.老师将器 材配齐后,他进行实验,图乙是他在操作过程中的一个状态,透过玻璃砖观察,调整视线方 向,插上第四枚大头针P 应使其遮挡住________. 4 (2)为取得较好的实验效果,下列操作正确的是________. A.必须选用上下表面平行的玻璃砖 B.选择的入射角应尽量小些 C.大头针应垂直地插在纸面上 D.大头针P 和P 及P 和P 之间的距离适当大些 1 2 3 4 (3)小朱同学在量入射角和折射角时,由于没有量角器,在完成了光路图以后,用圆规以O 点为圆心、OA为半径画圆,交OO′延长线于C点,过A点和C点作垂直法线的直线分别 交于B点和D点,如图丙所示,若他测得AB=7.5 cm,CD=5 cm,则可求出玻璃的折射率 n=________.(4)某同学在纸上画出的界面aa′、bb′与玻璃砖位置的关系如图所示,他的其他操作均正 确,且均以aa′、bb′为界面画光路图.则该同学测得的折射率测量值________真实值. (选填“大于”“小于”或“等于”)
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  1. CONNECT:[ UseTime:0.000609s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000912s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000371s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000329s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000671s ]
  6. SELECT * FROM `set` [ RunTime:0.000293s ]
  7. SHOW FULL COLUMNS FROM `wendang` [ RunTime:0.000955s ]
  8. SELECT * FROM `wendang` WHERE `id` = 374048 LIMIT 1 [ RunTime:0.002034s ]
  9. UPDATE `wendang` SET `liulancishu` = 1 WHERE `id` = 374048 [ RunTime:0.003149s ]
  10. UPDATE `wendang` SET `lasttime` = 1773124090 WHERE `id` = 374048 [ RunTime:0.000769s ]
  11. SELECT * FROM `wendang` WHERE `id` < 374048 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000814s ]
  12. SELECT * FROM `wendang` WHERE `id` > 374048 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000736s ]
  13. SELECT * FROM `wendang` WHERE `id` <> 374048 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003955s ]
  14. SELECT * FROM `wendang` WHERE `id` <> 374048 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.007427s ]
  15. SELECT * FROM `wendang` WHERE `id` <> 374048 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004811s ]
0.132081s