论文部分内容阅读
在学校中演示阿基米德定律的实驗,存在着很大的缺點。例如:用所謂“阿基米德小杯”作实驗時,很少能看出演示的現象;在教学法的参考书中,關於進行氣体的阿基米德定律的演示,缺乏明确的說明(說明这定律數量的方面);關於阿基米德定律实際应用的实驗,也设計得很差。早在1918年,波·阿·巴拉諾夫(波·阿·巴拉諾夫1913年著“物理教学法”)就考慮到“阿基米德小杯”的缺點了。考慮这些缺點时,便想到最好把一些簡單的实驗介紹給物理教師們,特別是剛剛開始任課的物理教師。实驗1.液体阿基米德定律的演示实驗小杯应当是透明的(例如用玻璃製成的)。可以利用無色玻璃瓶製成玻璃茶杯或玻璃圆筒。在玻璃圆筒的内壁上塗以机油,將一個一
The experiment that shows Archimedes’ law in school, there is a big flaw. For example, the demonstration of the phenomenon with the so-called “Archimedean cuvette” is seldom seen; in the pedagogy reference book, there is no clear explanation of the demonstration of the Archimedean law of gas Illustrating the number of laws); experiments on the practical application of Archimedes’ law were also poorly designed. As early as 1918 Bojan Baranov (Poh Baranov’s Physical Teaching Act of 1913) took into consideration the shortcomings of the Archimedes Cup. With these shortcomings in mind, it is best to introduce some simple experiments to physics teachers, especially physics teachers who have just begun classes. Experiment 1. Demonstration of Liquid Archimedes’ Law Experiment cuvettes should be transparent (eg made of glass). Glass cups or glass cylinders can be made from colorless glass bottles. Coated with oil on the inner wall of the glass cylinder, one by one