{"title":"寻找重力加速度的低成本技术","authors":"Chetan Kotabage","doi":"arxiv-2408.01451","DOIUrl":null,"url":null,"abstract":"The most common way to find gravitational acceleration, g, in a laboratory is\nto use a simple pendulum and a clock. Alternately, g can be calculated by\nmeasuring time and distance for a free fall. Since the time of free fall in a\nlaboratory is short, there are challenges in measuring the short period. In\nthis article, a low cost technique to measure the time for a free fall using a\ndischarging RC circuit is discussed.","PeriodicalId":501565,"journal":{"name":"arXiv - PHYS - Physics Education","volume":"41 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A low cost technique to find gravitational acceleration\",\"authors\":\"Chetan Kotabage\",\"doi\":\"arxiv-2408.01451\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The most common way to find gravitational acceleration, g, in a laboratory is\\nto use a simple pendulum and a clock. Alternately, g can be calculated by\\nmeasuring time and distance for a free fall. Since the time of free fall in a\\nlaboratory is short, there are challenges in measuring the short period. In\\nthis article, a low cost technique to measure the time for a free fall using a\\ndischarging RC circuit is discussed.\",\"PeriodicalId\":501565,\"journal\":{\"name\":\"arXiv - PHYS - Physics Education\",\"volume\":\"41 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Physics Education\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2408.01451\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Physics Education","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2408.01451","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
在实验室中计算重力加速度 g 的最常见方法是使用一个简单的钟摆和一个时钟。另外，也可以通过测量自由落体的时间和距离来计算 g。由于实验室中自由落体的时间很短，因此在测量短周期时面临挑战。本文讨论了一种利用放电 RC 电路测量自由落体时间的低成本技术。
A low cost technique to find gravitational acceleration
The most common way to find gravitational acceleration, g, in a laboratory is
to use a simple pendulum and a clock. Alternately, g can be calculated by
measuring time and distance for a free fall. Since the time of free fall in a
laboratory is short, there are challenges in measuring the short period. In
this article, a low cost technique to measure the time for a free fall using a
discharging RC circuit is discussed.
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