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目前，非实验室环境下开展的基础物理实验教学不仅仅是应对突发公共安全事件的举措，也改变着物理教学的模式。在南开大学居家物理实验教学案例的基础上，给出了在非实验室环境下可较低成本地开展的两种液体表面张力系数测量的实验方案，方案提出利用手机以及简易输液瓶和自动铅笔头可以组装出滴重法和悬滴法测量液体表面张力系数的装置，并利用该装置对自来水的表面张力系数进行了测量，给出了详细的实验设计、测量方案以及测量结果的准确度，进而探讨了其在基础物理实验教学上的适用性。
Abstract：At present, the basic physics experiment teaching in nonlaboratory environment is not only a measure to deal with public security emergencies, but also changes the mode of physics teaching. Based on the case of home physics experiment teaching in Nankai University, two experimental schemes for measuring liquid surface tension coefficient at low cost in nonlaboratory environment are given. The scheme puts forward that the devices for measuring liquid surface tension coefficient by Drop weight method and Pendant drop method can be assembled by using mobile phone, simple infusion bottle and automatic pencil head. The device is used to measure the surface tension coefficient of tap water. The detailed experimental design, measurement scheme and the accuracy of measurement results are given. Its applicability in basic physics experiment teaching is also discussed.
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基本信息:
中图分类号:O552.421-33
引用信息:
[1]李文华,王槿,文小青.居家实验：利用滴重法和悬滴法测量液体的表面张力系数[J].物理与工程,2022,32(06):135-141.
基金信息:
高等学校教学研究项目(DJZW202010hb); 港澳与内地高等学校师生交流计划项目(202111120070); 国家基础科学人才培养基金项目(J1210027); 南开大学物理基地能力提高项目(J1103208)
2022-09-08
2022-09-08
2022-09-08