摘要
列举了5种容易进入误区的案例,例如:蜡烛熄灭问题,大小气球变化问题,发电机输出波形问题,打结问题及液体扩散问题,并逐一用实验呈现出了客观的实验现象,分析了实验本质,旨在通过这些实验纠正学生的思维惯性,带领学生走出思维误区,让学生和教师认识到实验教学的重要性.
Five mostly misunderstood cases, such as candle extinguishing problem, balloon sizechanging problem, output waveform of electric generator, knot tying problem and liquid diffusion problem, were presented. The objective phenomena were showed by demonstrating experiments, the essence of each experiment was analyzed. By these experiments, students＇ misunderstandings about these cases were corrected, and the significance of experiment teaching was shwon.
出处
《物理实验》
2015年第4期18-22,共5页
Physics Experimentation
关键词
密度
气体压强
交变电压
摩擦力
扩散
density
gas pressure
alternating voltage
friction force
diffusion
