January 2026
Intermediate
312 pages
10h 23m
English
Content preview from Nvision Foundation Physics Grade 9 2026
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Learning Outcomes
After reading this chapter, you would be able to:
✦ understand about pressure and its calculation.
✦ understand about thrust.
✦ learn about buoyancy and its calculation.
✦ discuss Archimedes’ principle.
✦ describe density and relative density.
✦ explain types of fluid flow.
Geekspeak
❖ Pressure
❖ Thrust
❖ Fluid
❖ Buoyancy
❖ Buoyant force
❖ Archimedes’ principle
❖ Density
❖ Relative density
❖ Floatation
❖ Streamline flow
❖ Laminar flow
❖ Turbulent flow
❖ Reynold’s number
❖ Equation of continuity
❖ Bernoulli’s principle
Introduction
Let us discuss some important terms used in this chapter.
• Fluid: It is a substance that ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.