MindMap Gallery Buoyancy and lift - junior high school physics
Buoyancy and lift - junior high school physics, buoyancy is caused by the difference in pressure between the upward and downward pressure of the liquid on the object. Friends in need hurry up and collect it!
Edited at 2024-02-11 16:18:27This 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).
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).
buoyancy and lift
buoyancy
definition
An object immersed in a liquid will experience a vertical upward force from the liquid
Buoyancy is caused by the difference in upward and downward pressure exerted by a liquid on an object
relation
Related to the volume (v) of the object immersed in the liquid
It is related to the density of the liquid (ρ)
The amount of buoyant force exerted on an object immersed in a liquid
The buoyant force on objects all immersed in the same liquid has nothing to do with the depth (h) of the object immersed in the liquid.
Archimedes' principle
An object immersed in a liquid experiences a vertical upward buoyancy force, and the magnitude of the buoyancy force is equal to the gravity of the liquid displaced by the object (F float = G displacement)
This principle also applies to gases
The sinking and floating conditions and applications of objects
Conditions for floating and sinking
F float > G row Object rises (ρ liquid > ρ object)
F float = G row Object suspended in liquid (ρ liquid = ρ object)
F float = G row Object floats on the liquid surface (ρ liquid > ρ object)
F float<G row object sinks (ρ liquid<ρ object)
Balloons and airships also follow the same buoyancy conditions in the air
10,000-ton giant ship
Increase the volume of liquid displaced.
submarine
change one's own gravity
Lift
High flow rate, low pressure
Small flow rate, strong pressure