8.2.2 - Atmospheric Pressure as a Datum
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What happens to shear stress in a fluid at rest?
💡 Hint: Think about forces acting on fluids that are not moving.
Define gauge pressure.
💡 Hint: Consider how we measure pressure relative to the surrounding atmosphere.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is gauge pressure?
💡 Hint: Think about how we define pressure on a gauge.
True or False: Atmospheric pressure is constant at all altitudes.
💡 Hint: Consider what happens when you climb mountains.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Calculate the gauge pressure at a depth of 5 meters in a lake where water density is 1000 kg/m³. Assume atmospheric pressure is 101.3 kPa.
💡 Hint: Use the hydrostatic pressure equation and subtract atmospheric pressure.
Discuss how the capillary rise would change if the diameter of the tube is reduced to half while keeping the liquid and substrate material the same.
💡 Hint: Think about the relationship between tube diameter and height of liquid rise.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.