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学习了“压强”知识后,我们应该了解压力和压强的关系,知道生活中增大或减小压强的方法,了解液体压强的特点及液体压强与哪些因素有关,知道大气压强及其与人类的关系,了解流体压强和流速的关系及其在生活中的应用.压力和压强压力是指垂直作用在物体表面上的力,方向与受力面垂直且指向受力物体.压力的作用效果跟压力的大小和受力面积的大小有关:当压力相同时,受力面积越小,压力的作用效果越明显;当受力面积一定时,压力越
After learning the knowledge of “pressure”, we should understand the relationship between pressure and pressure, know how to increase or decrease pressure in life, understand the characteristics of fluid pressure and the factors that affect fluid pressure, and know the relationship between atmospheric pressure and its relationship with Human relationships, understand the relationship between fluid pressure and flow rate and its application in life. Pressure and pressure Pressure refers to the vertical force on the surface of the object, the direction and the force perpendicular to the surface and points to force the object. With the size of the pressure and force the size of the area: When the pressure is the same, the smaller the force area, the effect of the pressure effect is more obvious; when the force area is fixed, the pressure