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压强计算是初中物理的一个重点,也是一个难点,是对前面密度计算的一个巩固与加深,还可以为后面的浮力计算做好铺垫。压强计算公式虽然不多,但能灵活运用对学生来说却很难。要掌握好压强计算,可分三步走:一、基本公式的正确使用压强计算公式的运用首先要注意物体或容器的形状以及物体存放的位置,且要弄清与接触面接触的是什么物质,如对容器底一般是指液体,对水平面一般是指
Pressure calculation is a key point and a difficulty for junior high school physics. It is a consolidation and deepening of the previous density calculations, and can also be a good starting point for subsequent buoyancy calculations. Although there are few pressure formulas, it is difficult for students to use flexibly. To master the pressure calculation, it can be divided into three steps: First, the correct use of the basic formula The use of pressure formulas should first pay attention to the shape of the object or container and the location of the object, and to understand what is in contact with the contact surface material , for example, refers to the liquid at the bottom of the container and generally refers to the water level.