如图甲所示,在两块相同的玻璃片上,分别滴一滴质量相同、温度相

如图甲所示,在两块相同的玻璃片上,分别滴一滴质量相同、温度相同的水.小明观察图中实验现象可得出结论:水蒸发快慢与  有关.如图乙所示,烧杯里装有同种液体,小明根据实验现象可得出结论:同种液体内部压强  

 

答案

       解:(1)如图甲所示,在两块相同的玻璃片上,分别滴一滴质量相同、温度相同的水,两滴水的表面积不同,所以蒸发的快慢不同,说明水蒸发快慢与液体表面积有关;

2)如图乙所示,探头的深度不同,U型管中两液面的高度差不同,所以可得出同种液体内部压强随液体深度增加而增大.

故答案为:液体表面积;随液体深度增加而增大.

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