图1题目(武汉中考)如图1所示,在小瓶里装一些带颜色的水,再取一根两端开口的细玻璃管,在它上面画上刻度,使玻璃管穿过橡皮塞插入水中,从管子上端吸入少量气体,就制成了一个简易的气压计.小明把气压计从山脚带到山顶的水平地面上,玻璃管内水柱的高度变大,水对容器底的压强变大(填“变小”“不变”或“变大”).如果在瓶中装满水,就可以制成一个较准确的温度计.(写出仪器名称)解:由题知,瓶内气压等于外界大气压加上管内水柱产生 Figure 1 title (Wuhan senior high school entrance examination) as shown in Figure 1, in the vial filled with some colored water, and then take a small glass tube open at both ends, painted on it scale, the glass tube inserted through the rubber plug Water, inhaling a small amount of gas from the top of the pipe, made a simple barometer. Xiao Ming barometer from the foot to the top of the mountain level, the height of the water column in the glass tube becomes larger, the pressure of water on the bottom of the container becomes larger Fill in “smaller” “unchanged ” or “bigger ”). If you fill the bottle with water, you can make a more accurate thermometer. Know, the pressure inside the bottle equals the atmospheric pressure plus the water column inside the tube