关于“拍”现象的直观教学
收稿日期: 2020-07-21
修回日期: 2020-12-08
网络出版日期: 2021-09-24
基金资助
安徽省重大教学研究项目(2018jyxm1331,2020xsxxkc413);淮南师范学院质量工程项目(2019syjx15,2017 hsjyxm24,2019hsjy78)资助
The intuitional teaching method of the beat phenomenon
Received date: 2020-07-21
Revised date: 2020-12-08
Online published: 2021-09-24
夏峥嵘, 李荣青, 童 悦, 徐小雪 . 关于“拍”现象的直观教学[J]. 大学物理, 2021 , 40(9) : 10 . DOI: 10.16854 / j.cnki.1000- 0712.200324
the rea- son that caused the characteristic of the Beat phenomenon are analyzed. Then the
amplitude and the phase position of the beat phenomenon are discussed in detail. Finally, the
phase jump is also shown by the rotating vector method
clearly. The method describing the beat phenomenon in this paper makes the model of the beat
phenomenon so visu-al and intuitive that one can understand it very easily.
Key words: beat phenomenon; rotating vector; period; intuition
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