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.
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The ice hockey schedule for the Milano Cortina 2026 Winter Olympics, featuring preliminary rounds, quarterfinals, and medal matches for both men's and women's tournaments from February 5–22. All game times are listed in Eastern Standard Time (EST).
This Valentine's Day brand marketing handbook provides businesses with five practical models, covering everything from creating offline experiences to driving online engagement. Whether you're a shopping mall, restaurant, or online brand, you'll find a suitable strategy: each model includes clear objectives and industry-specific guidelines, helping brands transform traffic into real sales and lasting emotional connections during this romantic season.
This Valentine's Day map illustrates love through 30 romantic possibilities, from the vintage charm of "handwritten love letters" to the urban landscape of "rooftop sunsets," from the tactile experience of a "pottery workshop" to the leisurely moments of "wine tasting at a vineyard"—offering a unique sense of occasion for every couple. Whether it's cozy, experiential, or luxurious, love always finds the most fitting expression. May you all find the perfect atmosphere for your love story.
The ice hockey schedule for the Milano Cortina 2026 Winter Olympics, featuring preliminary rounds, quarterfinals, and medal matches for both men's and women's tournaments from February 5–22. All game times are listed in Eastern Standard Time (EST).
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