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How Liquids, Air, and Density Change Pressure

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Reuben Cowell

29/08/2023

Physics

1.5.5 Pressure and Pressure differences in fluids

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Physics

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Solids, liquids & gases

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Pressure in fluids

How Liquids, Air, and Density Change Pressure

Understanding fluid pressure dynamics - A comprehensive guide exploring how pressure operates in fluids, covering atmospheric pressure variations and the relationship between density and pressure in liquids.

Key points:

  • Calculating pressure differences in liquids involves considering depth, density, and gravitational field strength
  • Understanding atmospheric pressure and elevation effects shows how pressure decreases with increasing height
  • Fluid pressure mechanics include the concept of upthrust and how density affects pressure in fluids
  • Practical applications demonstrate pressure's impact in both liquid and gaseous environments
...

29/08/2023

323

1.5.5 Pressure and Pressure Differences in Fluids Physics MOC Pressure in a Fluid Fluids are substances that can flow, either liquids or gas

View

Page 2: Pressure Variation with Depth

This section explores how pressure changes with depth in liquids and introduces the concept of upthrust. The relationship between pressure, height, density, and gravitational field strength is detailed.

Definition: Upthrust is the resultant force experienced by partially or fully submerged objects due to pressure difference.

Example: Water jets demonstrate pressure variation - stronger jets at greater depths indicate higher pressure.

Highlight: The equation p = h × ρ × g shows how pressure depends on height, density, and gravitational field strength.

1.5.5 Pressure and Pressure Differences in Fluids Physics MOC Pressure in a Fluid Fluids are substances that can flow, either liquids or gas

View

Page 3: Upthrust and Atmospheric Pressure

This page delves into the principles of upthrust and introduces atmospheric pressure concepts. The relationship between fluid density and upthrust is explained in detail.

Vocabulary: Atmospheric pressure results from air molecules colliding with surfaces.

Definition: Displaced fluid volume is equal to the volume of the submerged object.

Highlight: Atmospheric pressure decreases with increasing height due to fewer air molecules above.

1.5.5 Pressure and Pressure Differences in Fluids Physics MOC Pressure in a Fluid Fluids are substances that can flow, either liquids or gas

View

Page 4: Atmospheric Pressure Variations

The final page examines atmospheric pressure changes with elevation and environmental factors. Visual representations show pressure differences between sea level and higher altitudes.

Example: Atmospheric pressure is highest at sea level and decreases with elevation.

Highlight: Daily weather patterns can affect atmospheric pressure measurements.

Definition: Elevation's effect on atmospheric pressure is due to the decreasing weight of air above as height increases.

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Subjects

Physics

Solids, liquids & gases

Pressure in fluids

 

Physics

•

323

•

29 Aug 2023

•

4 pages

How Liquids, Air, and Density Change Pressure

user profile picture

Reuben Cowell

@reubencowell

Understanding fluid pressure dynamics - A comprehensive guide exploring how pressure operates in fluids, covering atmospheric pressure variations and the relationship between density and pressure in liquids.

Key points:

  • Calculating pressure differences in liquidsinvolves considering depth, density, and gravitational... Show more
1.5.5 Pressure and Pressure Differences in Fluids Physics MOC Pressure in a Fluid Fluids are substances that can flow, either liquids or gas

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Page 2: Pressure Variation with Depth

This section explores how pressure changes with depth in liquids and introduces the concept of upthrust. The relationship between pressure, height, density, and gravitational field strength is detailed.

Definition: Upthrust is the resultant force experienced by partially or fully submerged objects due to pressure difference.

Example: Water jets demonstrate pressure variation - stronger jets at greater depths indicate higher pressure.

Highlight: The equation p = h × ρ × g shows how pressure depends on height, density, and gravitational field strength.

1.5.5 Pressure and Pressure Differences in Fluids Physics MOC Pressure in a Fluid Fluids are substances that can flow, either liquids or gas

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Page 3: Upthrust and Atmospheric Pressure

This page delves into the principles of upthrust and introduces atmospheric pressure concepts. The relationship between fluid density and upthrust is explained in detail.

Vocabulary: Atmospheric pressure results from air molecules colliding with surfaces.

Definition: Displaced fluid volume is equal to the volume of the submerged object.

Highlight: Atmospheric pressure decreases with increasing height due to fewer air molecules above.

1.5.5 Pressure and Pressure Differences in Fluids Physics MOC Pressure in a Fluid Fluids are substances that can flow, either liquids or gas

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Page 4: Atmospheric Pressure Variations

The final page examines atmospheric pressure changes with elevation and environmental factors. Visual representations show pressure differences between sea level and higher altitudes.

Example: Atmospheric pressure is highest at sea level and decreases with elevation.

Highlight: Daily weather patterns can affect atmospheric pressure measurements.

Definition: Elevation's effect on atmospheric pressure is due to the decreasing weight of air above as height increases.

1.5.5 Pressure and Pressure Differences in Fluids Physics MOC Pressure in a Fluid Fluids are substances that can flow, either liquids or gas

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Join milions of students

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Page 1: Introduction to Fluid Pressure

This page introduces the fundamental concepts of fluid pressure and its calculation methods. The relationship between force and area in pressure calculations is thoroughly explained for both liquids and gases.

Definition: Pressure is the force per unit area acting normal to any surface.

Vocabulary: Fluids are substances that can flow, including both liquids and gases.

Example: The ocean demonstrates pressure variation with depth - pressure increases as you go deeper.

Highlight: The mathematical equation for pressure (P = F/A) forms the foundation for understanding fluid pressure calculations.

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Paul T

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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

Paul T

iOS user