随着网络和信息技术逐渐渗入我们的生活，一线教学的教育观念也已经发生改变，教育越来越离不开网络，物理学科极大地推动了信息技术的发展，同时信息技术在教育领域中也体现出了自身独有的特点以及无法替代的优势。笔者从理论上分析了物理教学对网络空间的需求情况，以及初中教学需要借助网络平台的必然趋势。以本次疫情期间的网络授课为例，为对初中物理线上教学的现状和有效性进行调查，笔者采用问卷法，对吉林省长春市两所中学的初一、初二、初三的学生进行了问卷调查，同时通过访谈法对长春市一所初中的物理学科年级组长进行了访谈调查，通过教育学统计方法对问卷结果和访谈结果进行分析。通过调查，初中学生对线上物理课堂的功能和有效性基本认可，并对未来的线上物理课堂表现出很高的期待，但互动不足、学生自控力低等问题仍明显，线上物理实验课也表现出“低效”的情况。

 With the gradual penetration of network and information technology into our lives, the educational concept of front-line teaching has also changed. Physics greatly promotes the development of information technology. The author theoretically analyzes the demand of Physics Teaching for cyberspace and the inevitable trend of junior middle school teaching with the help of network platform. Taking the network teaching during the epidemic period as an example, in order to investigate the current situation and effectiveness of online physics teaching in junior high school, the author uses the questionnaire method to investigate the students in grade one, grade two and grade three of two middle schools in Changchun, Jilin Province. Through the investigation, junior high school students recognize the function and effectiveness of online physics class, and show high expectations for the future online physics class, but the problems of insufficient interaction, the problem of insufficient self-control is still obvious, and online physics experiment class also shows "low efficiency".