问题 实验题

在比较水和煤油比热容大小的实验中,小明取了两只相同的烧杯,且在烧杯里分别装入质量和初温都相同的水和煤油.他用两个完全相同的“热得快”给它们加热,并记录得到了下表中的实验数据,请你回答下列问题:

(1) 小明给水和煤油加热,选用两个同样的“热得快”的目的是什么?

_______________________________________________

(2) 两种液体相比较,温度升高比较快的是_________ ,

(3) 它们在相同时间内升温不同的原因是___________ ,

(4) 如图是小明根据实验数据画出的图线,其中_____________表示的是水吸热升温情况.

答案

(1)让水和煤油在相同时间内吸收相等的热量

(2)煤油 

 (3)比热容不同  

(4)B

选择题
完形填空
完形填空。
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