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出 处:《实验室研究与探索》2013年第9期128-131,共4页Research and Exploration In Laboratory
摘 要:为了给学生提供更多的设计性、研究性、创新性的实验课题,我们充分挖掘现有实验仪器的潜能,在气垫导轨上设计新的力学实验,例如:爆炸过程动量守恒实验,火炮发射的力学研究实验,永磁体磁位能测试实验。本文给出了实验装置的构成及试验测试数据。数据表明,弹丸出口速度测试、加速距离与出口速度及射程关系、填药量与射程及速度关系、爆炸总动量守恒验证、两个磁体之间的距离与磁力之间的关系、磁相互作用位能与间距之间的关系等均符合物理实验规律。In order to provide students more experiments which are designable,researchable and innovative,we excavated the potentiality of laboratory apparatus,and designed new mechanics experiments on air tracks.These experiment includes,for example,the momentum conservation experiment in explosion process,the mechanics study on gun launch,and test experiment of magnetic potential energy.This article gives the constitutions of these experimental instruments and the data of these tests.These data verify that the projectile velocity testing; the relationship between acceleration distance and the project range,the relationship between volume of fuel and project range,momentum conservation experiment in explosion process,the relationship between magnet interactional force and magnet spacing,magnetic potential energy of magnet and magnet spacing etc,are all to meet with physical laws.
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