用一组沿轴向充磁的小磁环,辅以玻璃棒等易得材料,组成中学生物理实验组合,可以完成高中物理(甲种本)所要求的多种力、电磁实验,举例如下:1 验证有固定转动轴物体平衡条件圆薄铁板(可用废油漆桶盖)中心钻孔,废指示灯罩做芯,绕轴转动(轴是铁钉)将多组磁环吸附其上,如图1。 With a group of small magnetic rings axially magnetized, supplemented by glass rods and other readily available materials to form a combination of high school students physical experiments, you can complete a variety of force and electromagnetic experiments required by high school physics (A type of this), examples are as follows: 1 Verify that there is a fixed rotary shaft object balance condition round thin iron plate (can be used for waste paint bucket cover) center drill hole, waste indicator cover as the core, rotate around the axis (axis is a nail) to adsorb multiple sets of magnetic rings, as shown 1.