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苏科版物理教材9年级下册有一个探究活动:“探究影响电流做功的因素”,在这个活动中有这样一段话“白炽灯是电能转化为内能并进而转化为光能的装置,一般来讲,在相同时间内电流做的功越多,电灯消耗的电能就越多,电灯获得的内能也就越多,电灯就越亮,因此,根据电灯的亮暗程度,我们
In the 9th grade of the Suko version of the physics textbook, there is an inquiry activity: “Exploring the factors that affect the current doing work”. In this activity there is such a phrase “An incandescent lamp is a device that converts electrical energy into internal energy and then into light energy. In terms of the more current the electric current does in the same time, the more electric energy the lamp consumes, the more internal energy the electric lamp gets, and the brighter the electric lamp. Therefore, according to the brightness of the lamp, we