MindMap Gallery Magical pressure - junior high school physics
Magical Pressure - Junior High School Physics, mainly including pressure, pressure of solids, pressure of liquids, Atmospheric pressure (atmospheric pressure), etc.
Edited at 2024-02-11 16:23:20One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
Project management is the process of applying specialized knowledge, skills, tools, and methods to project activities so that the project can achieve or exceed the set needs and expectations within the constraints of limited resources. This diagram provides a comprehensive overview of the 8 components of the project management process and can be used as a generic template for direct application.
One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
Project management is the process of applying specialized knowledge, skills, tools, and methods to project activities so that the project can achieve or exceed the set needs and expectations within the constraints of limited resources. This diagram provides a comprehensive overview of the 8 components of the project management process and can be used as a generic template for direct application.
Chapter 9 Pressure
pressure
Force acting vertically on an object's surface
pressure of solid
The ratio of the pressure on an object to the force-bearing area
p=F/s
Unit: Pascal, referred to as Pa - Pa (N/m-2)
When the pressure is the same, the stressed area is smaller
When the stressed areas are the same, the greater the pressure
The effect of pressure is more obvious
increase pressure
Reduce the stress area
increase pressure
reduce pressure
Increase the stress area
Reduce stress
liquid pressure
Features (with liquidity)
There is pressure in all directions inside the liquid, and at the same depth, the pressure in all directions is equal
The pressure inside the liquid is related to the depth (h). As the depth (h) increases, the pressure (p) increases.
The internal pressure of different liquids is related to the density of the liquid (ρ) at the same depth. The greater the density, the greater the pressure.
formula
p=ρgh
Connector
A container with an open upper end and a connected bottom.
When the liquid is at rest, the liquid levels in each container remain equal.
Atmospheric pressure (atmospheric pressure)
The Magdeburg Hemisphere Experiment proved the existence of atmospheric pressure
Torricelli experiment - the pressure generated by 760mm of mercury = 1 standard atmosphere
The value of a standard atmospheric pressure is approximately 1.013×105 Pa