有一道中考物理试题:用蒸笼蒸馒头,是上层还是下层蒸格中的馒头先熟呢?小明仔细观察后发现:高温的水蒸气经过多层蒸格向上升,遇到冷的蒸笼盖时,大量水蒸气发生现象,很多热量,使层蒸格中的馒头先熟。可以发现,这是一道与生活实际密切联系的题目,体现了物理课教学“从生活走向物理,从物理 There is a physical exam in the exam: Steamed bun steamed with steamer is the upper or lower steam steamed bread in the first cooked? Xiaoming carefully observed and found: high temperature steam through the multi-layer steamed grid to rise, encountered cold steamer cover, A large number of water vapor phenomenon, a lot of heat, so steamed layer of steamed bread first cooked. It can be found that this is a topic closely linked with the actual life and reflects the teaching of physics ”from life to physics and from physics