随着人们生活水平的不断提高,电冰箱已进入千家万户。有许多家庭因怕费电而不敢在电冰箱内存放较多的食物。是不是冰箱内食物越多越费电呢?九年级(1)班的物理兴趣小组成员小明、小华和小丽三位同学对这一问题进行了探究:三位同学通过讨论明确了要探究上述问题,只需改变冰箱内存放食物的多少,同时测出电冰箱在一定时间内消耗的电能,再进行比较 With the continuous improvement of people’s living standards, refrigerators have entered millions of households. Many families are afraid of storing more food in refrigerators because they are afraid of power consumption. Is the food in the refrigerator more and more expensive? The members of the physical interest group in Grade 9 (1) Xiaoming, Xiaohua, and Xiaoli explored this issue: The three students clearly discussed to explore The above problem only needs to change the amount of food stored in the refrigerator, and at the same time measure the energy consumed by the refrigerator in a certain period of time, and then compare